This list is generated based on igor's probs.txt file, which is posted on his blog.
It's generated in 2006, but it's still very useful.
Thanks for sharing.
It's generated in 2006, but it's still very useful.
Thanks for sharing.
100 63373 The 3n + 1 problem
102 15736 Ecological Bin Packing
10018 12312 Reverse and Add
10071 12271 Back to High School Physics
105 11471 The Skyline Problem
10055 11238 Hashmat the Brave Warrior
10038 10401 Jolly Jumpers
10013 9934 Super long sums
136 9906 Ugly Numbers
101 9831 The Blocks Problem
272 9830 TEX Quotes
108 9210 Maximum Sum
591 9066 Box of Bricks
10189 9066 Minesweeper
458 8933 The Decoder
495 7419 Fibonacci Freeze
488 7290 Triangle Wave
10035 7188 Primary Arithmetic
128 6865 Software CRC
382 6480 Perfection
113 6419 Power of Cryptography
673 6379 Parentheses Balance
706 6345 LCD Display
406 6312 Prime Cuts
10062 6178 Tell me the frequencies!
299 6168 Train Swapping
10004 6034 Bicoloring
10110 5989 Light, More Light
103 5917 Stacking Boxes
10082 5815 WERTYU
494 5808 Kindergarten Counting Game
160 5807 Factors and Factorials
543 5764 Goldbach's Conjecture
583 5736 Prime Factors
369 5643 Combinations
264 5473 Count on Cantor
483 5355 Word Scramble
119 5313 Greedy Gift Givers
424 5283 Integer Inquiry
408 5240 Uniform Generator
371 5203 Ackermann Functions
10008 5025 What's Cryptanalysis?
138 4977 Street Numbers
10696 4976 f91
10041 4971 Vito's Family
10300 4941 Ecological Premium
492 4933 Pig-Latin
401 4874 Palindromes
106 4872 Fermat vs. Pythagoras
445 4855 Marvelous Mazes
151 4853 Power Crisis
541 4840 Error Correction
10098 4839 Generating Fast, Sorted Permutation
10152 4764 ShellSort
579 4755 ClockHands
10006 4735 Carmichael Numbers
441 4700 Lotto
575 4684 Skew Binary
499 4489 What's The Frequency, Kenneth?
686 4451 Goldbach's Conjecture (II)
612 4449 DNA Sorting
524 4423 Prime Ring Problem
10107 4420 What is the Median?
476 4406 Points in Figures: Rectangles
112 4344 Tree Summing
107 4266 The Cat in the Hat
10370 4254 Above Average
324 4216 Factorial Frequencies
111 4117 History Grading
10033 4111 Interpreter
374 4108 Big Mod
10106 4084 Product
568 4055 Just the Facts
701 4053 The Archeologists' Dilemma
412 3999 Pi
195 3984 Anagram
400 3927 Unix ls
10340 3898 All in All
256 3883 Quirksome Squares
344 3848 Roman Digititis
120 3800 Stacks of Flapjacks
729 3774 The Hamming Distance Problem
10127 3745 Ones
231 3732 Testing the CATCHER
530 3714 Binomial Showdown
10327 3713 Flip Sort
694 3701 The Collatz Sequence
10019 3696 Funny Encryption Method
350 3687 Pseudo-Random Numbers
116 3678 Unidirectional TSP
640 3660 Self Numbers
10079 3604 Pizza Cutting
674 3601 Coin Change
10222 3487 Decode the Mad man
10405 3461 Longest Common Subsequence
294 3389 Divisors
305 3389 Joseph
10783 3381 Odd Sum
444 3370 Encoder and Decoder
10034 3363 Freckles
122 3353 Trees on the level
440 3342 Eeny Meeny Moo
104 3328 Arbitrage
438 3327 The Circumference of the Circle
443 3314 Humble Numbers
439 3285 Knight Moves
490 3282 Rotating Sentences
10469 3273 To Carry or not to Carry
10346 3255 Peter's Smoke
146 3249 ID Codes
10324 3248 Zeros and Ones
498 3231 Polly the Polynomial
477 3215 Points in Figures: Rectangles and Circles
484 3209 The Department of Redundancy Department
392 3191 Polynomial Showdown
10200 3180 Prime Time
10050 3158 Hartals
190 3155 Circle Through Three Points
167 3139 The Sultan's Successors
10003 3098 Cutting Sticks
10010 3078 Where's Waldorf?
10302 3046 Summation of Polynomials
755 3041 487--3279
386 3033 Perfect Cubes
623 3012 500!
118 2976 Mutant Flatworld Explorers
10260 2966 Soundex
572 2964 Oil Deposits
133 2944 The Dole Queue
147 2931 Dollars
10515 2908 Powers Et Al.
200 2905 Rare Order
10000 2885 Longest Paths
446 2839 Kibbles ``n'' Bits ``n'' Bits ``n'' Bits
713 2835 Adding Reversed Numbers
793 2803 Network Connections
750 2792 8 Queens Chess Problem
10282 2768 Babelfish
10252 2738 Common Permutation
356 2735 Square Pegs And Round Holes
10209 2724 Is This Integration ?
834 2719 Continued Fractions
10424 2705 Love Calculator
10161 2674 Ant on a Chessboard
621 2667 Secret Research
202 2660 Repeating Decimals
10323 2647 Factorial! You Must be Kidding!!!
10473 2642 Simple Base Conversion
10066 2635 The Twin Towers
455 2626 Periodic Strings
10220 2601 I Love Big Numbers !
291 2580 The House Of Santa Claus
489 2568 Hangman Judge
10099 2556 The Tourist Guide
10070 2553 Leap Year or Not Leap Year and ...
155 2489 All Squares
333 2480 Recognizing Good ISBNs
10137 2459 The Trip
10009 2441 All Roads Lead Where?
402 2427 M*A*S*H
496 2413 Simply Subsets
514 2412 Rails
10432 2406 Polygon Inside A Circle
10131 2396 Is Bigger Smarter?
10235 2386 Simply Emirp
536 2367 Tree Recovery
10338 2350 Mischievous Children
497 2344 Strategic Defense Initiative
739 2334 Soundex Indexing
10533 2317 Digit Primes
414 2264 Machined Surfaces
534 2255 Frogger
573 2246 The Snail
10530 2232 Guessing Game
348 2227 Optimal Array Multiplication Sequence
389 2206 Basically Speaking
124 2202 Following Orders
567 2200 Risk
10812 2197 Beat the Spread!
478 2185 Points in Figures: Rectangles, Circles, Triangles
10579 2179 Fibonacci Numbers
227 2158 Puzzle
10699 2155 Count the factors
576 2151 Haiku Review
156 2145 Ananagrams
10105 2142 Polynomial Coefficients
459 2142 Graph Connectivity
784 2134 Maze Exploration
352 2130 The Seasonal War
10195 2126 The Knights Of The Round Table
110 2126 Meta-Loopless Sorts
130 2116 Roman Roulette
450 2114 Little Black Book
10074 2112 Take the Land
562 2107 Dividing coins
10394 2105 Twin Primes
10026 2102 Shoemaker's Problem
10550 2090 Combination Lock
847 2084 A Multiplication Game
10104 2079 Euclid Problem
417 2071 Word Index
10591 2064 Happy Number
10192 2049 Vacation
232 2046 Crossword Answers
725 2044 Division
10048 2031 Audiophobia
10450 2029 World Cup Noise
516 2025 Prime Land
10409 2001 Die Game
10025 1983 The ? 1 ? 2 ? ... ? n = k problem
191 1976 Intersection
531 1969 Compromise
357 1964 Let Me Count The Ways
336 1958 A Node Too Far
10929 1951 You can say 11
271 1942 Simply Syntax
340 1941 Master-Mind Hints
117 1938 The Postal Worker Rings Once
602 1938 What Day Is It?
109 1926 SCUD Busters
10310 1921 Dog and Gopher
637 1913 Booklet Printing
10014 1908 Simple calculations
10168 1901 Summation of Four Primes
275 1887 Expanding Fractions
10042 1876 Smith Numbers
624 1873 CD
123 1859 Searching Quickly
846 1855 Steps
532 1851 Dungeon Master
836 1846 Largest Submatrix
482 1841 Permutation Arrays
544 1825 Heavy Cargo
10499 1819 The Land of Justice
193 1787 Graph Coloring
121 1785 Pipe Fitters
474 1778 Heads / Tails Probability
485 1774 Pascal's Triangle of Death
10334 1774 Ray Through Glasses
300 1772 Maya Calendar
164 1770 String Computer
315 1770 Network
10608 1768 Friends
10130 1760 SuperSale
594 1756 One Little, Two Little, Three Little Endians
10015 1750 Joseph's Cousin
10142 1744 Australian Voting
727 1730 Equation
10305 1722 Ordering Tasks
383 1714 Shipping Routes
144 1710 Student Grants
661 1710 Blowing Fuses
740 1703 Baudot Data Communication Code
216 1692 Getting in Line
10789 1689 Prime Frequency
884 1676 Factorial Factors
10193 1674 All You Need Is Love
320 1672 Border
587 1666 There's treasure everywhere!
555 1656 Bridge Hands
537 1651 Artificial Intelligence?
10611 1650 The Playboy Chimp
10139 1641 Factovisors
442 1639 Matrix Chain Multiplication
10311 1632 Goldbach and Euler
10196 1631 Check The Check
201 1631 Squares
10924 1629 Prime Words
125 1626 Numbering Paths
378 1623 Intersecting Lines
699 1620 The Falling Leaves
10420 1616 List of Conquests
10474 1615 Where is the Marble?
10101 1598 Bangla Numbers
10190 1594 Divide, But Not Quite Conquer!
10198 1585 Counting
10931 1571 Parity
642 1571 Word Amalgamation
10215 1569 The Largest/Smallest Box ...
619 1565 Numerically Speaking
145 1558 Gondwanaland Telecom
152 1554 Tree's a Crowd
154 1543 Recycling
10183 1531 How Many Fibs?
10067 1530 Playing with Wheels
448 1530 OOPS!
10921 1526 Find the Telephone
10181 1524 15-Puzzle Problem
10179 1518 Irreducable Basic Fractions
10622 1495 Perfect P-th Powers
10286 1487 Trouble with a Pentagon
159 1480 Word Crosses
413 1478 Up and Down Sequences
10922 1473 2 the 9s
10049 1470 Self-describing Sequence
10182 1467 Bee Maja
409 1465 Excuses, Excuses!
166 1465 Making Change
10116 1460 Robot Motion
306 1450 Cipher
10063 1444 Knuth's Permutation
10102 1441 The path in the colored field
10221 1436 Satellites
839 1430 Not so Mobile
278 1417 Chess
10044 1416 Erdos Numbers
574 1413 Sum It Up
153 1405 Permalex
460 1405 Overlapping Rectangles
343 1403 What Base Is This?
114 1402 Simulation Wizardry
10336 1394 Rank the Languages
10036 1386 Divisibility
10129 1384 Play on Words
465 1379 Overflow
558 1376 Wormholes
10276 1374 Hanoi Tower Troubles Again!
10125 1369 Sumsets
10509 1363 R U Kidding Mr. Feynman!
10361 1361 Automatic Poetry
168 1361 Theseus and the Minotaur
10970 1346 Big Chocolate
10295 1343 Hay Points
10299 1338 Relatives
10465 1338 Homer Simpson
469 1337 Wetlands of Florida
10170 1335 The Hotel with Infinite Rooms
337 1333 Interpreting Control Sequences
10191 1328 Longest Nap
10032 1323 Tug of War
10219 1321 Find the ways !
10487 1320 Closest Sums
280 1319 Vertex
10285 1313 Longest Run on a Snowboard
10407 1312 Simple division
10080 1307 Gopher II
507 1304 Jill Rides Again
10700 1302 Camel trading
10508 1301 Word Morphing
785 1301 Grid Colouring
636 1296 Squares (III)
10267 1295 Graphical Editor
263 1293 Number Chains
127 1292 ``Accordian'' Patience
10245 1289 The Closest Pair Problem
10002 1286 Center of Masses
10140 1281 Prime Distance
140 1281 Bandwidth
10714 1279 Ants
10400 1273 Game Show Math
355 1268 The Bases Are Loaded
630 1266 Anagrams (II)
10404 1266 Bachet's Game
115 1265 Climbing Trees
253 1262 Cube painting
454 1262 Anagrams
10100 1251 Longest Match
422 1250 Word-Search Wonder
332 1248 Rational Numbers from Repeating Fractions
10020 1247 Minimal coverage
639 1246 Don't Get Rooked
10940 1246 Throwing cards away II
423 1244 MPI Maelstrom
10258 1244 Contest Scoreboard
10205 1243 Stack 'em Up
161 1241 Traffic Lights
10701 1239 Pre, in and post
10583 1223 Ubiquitous Religions
10360 1222 Rat Attack
10077 1222 The Stern-Brocot Number System
10298 1219 Power Strings
311 1210 Packets
10642 1210 Can You Solve It?
10271 1207 Chopsticks
10017 1206 The Never Ending Towers of Hanoi
615 1205 Is It A Tree?
326 1203 Extrapolation Using a Difference Table
10800 1201 Not That Kind of Graph
10297 1197 Beavergnaw
471 1197 Magic Numbers
10656 1197 Maximum Sum (II)
628 1196 Passwords
10443 1190 Rock, Scissors, Paper
10452 1190 Marcus, help!
486 1187 English-Number Translator
10223 1180 How many nodes ?
748 1174 Exponentiation
436 1172 Arbitrage (II)
129 1167 Krypton Factor
429 1167 Word Transformation
10684 1162 The jackpot
10056 1157 What is the Probability ?
10408 1155 Farey sequences
700 1154 Date Bugs
644 1154 Immediate Decodability
10397 1150 Connect the Campus
696 1145 How Many Knights
539 1142 The Settlers of Catan
10573 1140 Geometry Paradox
10703 1138 Free spots
10539 1137 Almost Prime Numbers
10738 1135 Riemann vs Mertens
10633 1133 Rare Easy Problem
10093 1132 An Easy Problem!
762 1132 We Ship Cheap
10451 1129 Ancient Village Sports
10347 1122 Medians
10162 1116 Last Digit
353 1113 Pesky Palindromes
10702 1112 Travelling Salesman
679 1109 Dropping Balls
10242 1107 Fourth Point !!
712 1107 S-Trees
10427 1104 Naughty Sleepy Boys
681 1095 Convex Hull Finding
10226 1095 Hardwood Species
10069 1093 Distinct Subsequences
10502 1092 Counting Rectangles
808 1090 Bee Breeding
384 1084 Slurpys
297 1084 Quadtrees
10176 1083 Ocean Deep ! - Make it shallow !!
141 1080 The Spot Game
10815 1077 Andy's First Dictionary
170 1077 Clock Patience
585 1072 Triangles
10187 1072 From Dusk Till Dawn
608 1068 Counterfeit Dollar
861 1060 Little Bishops
10007 1058 Count the Trees
10489 1056 Boxes of Chocolates
820 1056 Internet Bandwidth
325 1048 Identifying Legal Pascal Real Constants
10377 1048 Maze Traversal
843 1047 Crypt Kicker
10534 1042 Wavio Sequence
10415 1040 Eb Alto Saxophone Player
377 1039 Cowculations
598 1039 Bundling Newspapers
10043 1036 Chainsaw Massacre
148 1035 Anagram checker
10903 1032 Rock-Paper-Scissors Tournament
126 1032 The Errant Physicist
641 1028 Do the Untwist
10037 1028 Bridge
571 1027 Jugs
10365 1027 Blocks
11000 1027 Bee
711 1023 Dividing up
437 1021 The Tower of Babylon
10878 1020 Decode the tape
10188 1017 Automated Judge Script
302 1017 John's trip
391 1011 Mark-up
186 1008 Trip Routing
10784 1006 Diagonal
10945 1000 Mother bear
542 999 France '98
850 997 Crypt Kicker II
10229 993 Modular Fibonacci
825 993 Walking on the Safe Side
10491 989 Cows and Cars
10005 988 Packing polygons
10341 988 Solve It
10678 986 The Grazing Cow
580 985 Critical Mass
10392 974 Factoring Large Numbers
273 972 Jack Straws
10194 971 Football (aka Soccer)
447 970 Population Explosion
697 965 Jack and Jill
468 964 Key to Success
270 963 Lining Up
10128 963 Queue
526 961 String Distance and Transform Process
10279 961 Mine Sweeper
10016 955 Flip-Flop the Squarelotron
301 953 Transportation
435 948 Block Voting
10054 947 The Necklace
10935 939 Throwing cards away I
187 938 Transaction Processing
10141 937 Request for Proposal
10012 928 How Big Is It?
10364 928 Square
10673 928 Play with Floor and Ceil
260 925 Il Gioco dell'X
501 925 Black Box
10304 922 Optimal Binary Search Tree
10303 918 How Many Trees?
457 918 Linear Cellular Automata
10810 907 Ultra-QuickSort
10359 904 Tiling
551 899 Nesting a Bunch of Brackets
704 897 Colour Hash
10422 895 Knights in FEN
10490 890 Mr. Azad and his Son!!!!!
131 889 The Psychic Poker Player
10745 882 Dominant Strings
177 880 Paper Folding
220 878 Othello
466 875 Mirror, Mirror
10293 873 Word Length and Frequency
10719 871 Quotient Polynomial
10281 868 Average Speed
540 864 Team Queue
10078 862 The Art Gallery
763 861 Fibinary Numbers
397 861 Equation Elation
895 860 Word Problem
620 858 Cellular Structure
10680 848 LCM
10369 845 Arctic Network
10147 843 Highways
10040 843 Ouroboros Snake
10051 841 Tower of Cubes
10057 840 A mid-summer night's dream.
10905 839 Children's Game
626 839 Ecosystem
307 830 Sticks
10482 825 The Candyman Can
143 821 Orchard Trees
10763 820 Foreign Exchange
188 820 Perfect Hash
184 816 Laser Lines
10126 815 Zipf's Law
657 815 The die is cast
132 814 Bumpy Objects
254 814 Towers of Hanoi
10330 811 Power Transmission
10948 809 The primary problem
10115 807 Automatic Editing
10820 807 Send a Table
208 805 Firetruck
10290 803 {Sum+=i++} to Reach N
651 802 Deck
218 801 Moth Eradication
10600 800 ACM Contest and Blackout
821 799 Page Hopping
10301 799 Rings and Glue
10283 798 The Kissing Circles
375 794 Inscribed Circles and Isosceles Triangles
213 794 Message Decoding
10500 792 Robot maps
196 791 Spreadsheet
10088 791 Trees on My Island
10803 789 Thunder Mountain
10344 789 23 out of 5
10022 788 Delta-wave
10589 788 Area
523 785 Minimum Transport Cost
10199 785 Tourist Guide
394 783 Mapmaker
10081 783 Tight Words
481 782 What Goes Up
10363 777 Tic Tac Toe
10268 776 498-bis
362 773 18,000 Seconds Remaining
11005 771 Cheapest Base
668 770 Parliament
10620 770 A Flea on a Chessboard
10494 767 If We Were a Child Again
654 764 Ratio
10496 761 Collecting Beepers
737 759 Gleaming the Cubes
142 759 Mouse Clicks
10706 758 Number Sequence
589 755 Pushing Boxes
10523 755 Very Easy !!!
10249 754 The Grand Dinner
10664 753 Luggage
10954 753 Add All
638 746 Finding Rectangles
10957 742 So Doku Checker
183 740 Bit Maps
741 739 Burrows Wheeler Decoder
796 739 Critical Links
812 738 Trade on Verweggistan
10730 738 Antiarithmetic?
677 738 All Walks of length ``n'' from the first node
10790 737 How Many Points of Intersection?
714 735 Copying Books
418 730 Molecules
726 729 Decode
209 729 Triangular Vertices
10326 715 The Polynomial Equation
331 715 Mapping the Swaps
10653 715 Bombs! NO they are Mines!!
10112 710 Myacm Triangles
10197 710 Learning Portuguese
10596 707 Morning Walk
10315 705 Poker Hands
135 705 No Rectangles
10852 704 Less Prime
10201 704 Adventures in Moving - Part IV
10679 703 I Love Strings!!
10375 700 Choose and divide
565 698 Pizza Anyone?
467 695 Synching Signals
756 695 Biorhythms
665 694 False coin
833 693 Water Falls
10001 689 Garden of Eden
614 688 Mapping the Route
10154 687 Weights and Measures
10213 687 How Many Pieces of Land ?
10374 687 Election
137 686 Polygons
10177 685 (2/3/4)-D Sqr/Rects/Cubes/Boxes?
10132 682 File Fragmentation
652 681 Eight
139 677 Telephone Tangles
584 677 Bowling
776 677 Monkeys in a Regular Forest
165 675 Stamps
162 675 Beggar My Neighbour
327 674 Evaluating Simple C Expressions
321 671 The New Villa
10150 670 Doublets
670 668 The dog task
10393 668 The One-Handed Typist
318 665 Domino Effect
590 662 Always on the run
314 659 Robot
535 658 Globetrotter
688 657 Mobile Phone Coverage
10368 655 Euclid's Game
556 652 Amazing
703 652 Triple Ties: The Organizer's Nightmare
601 651 The PATH
10202 650 Pairsumonious Numbers
134 649 Loglan-A Logical Language
255 649 Correct Move
545 647 Heads
434 646 Matty's Blocks
10518 645 How Many Calls?
855 641 Lunch in Grid City
245 641 Uncompress
10705 638 The Fun Number System
10287 637 Gifts in a Hexagonal Box
10061 637 How many zero's and how many digits ?
10919 635 Prerequisites?
10354 634 Avoiding Your Boss
10504 634 Hidden squares
10259 634 Hippity Hopscotch
10519 633 !! Really Strange !!
10065 633 Useless Tile Packers
10943 633 How do you add?
10391 631 Compound Words
533 629 Equation Solver
339 627 SameGame Simulation
10780 626 Again Prime? No Time.
379 626 Hi-Q
10849 625 Move the bishop
815 620 Flooded!
617 620 Nonstop Travel
10916 619 Factstone Benchmark
462 618 Bridge Hand Evaluator
10689 618 Yet another Number Sequence
538 617 Balancing Bank Accounts
632 617 Compression (II)
550 616 Multiplying by Rotation
10510 612 Cactus
547 612 DDF
10371 611 Time Zones
290 609 Palindroms <---> smordnilaP
493 607 Rational Spiral
10307 607 Killing Aliens in Borg Maze
743 607 The MTM Machine
10551 606 Basic Remains
634 606 Polygon
10693 605 Traffic Volume
10683 604 The decadary watch
10356 603 Rough Roads
11040 603 Add bricks in the wall
607 601 Scheduling Lectures
10165 600 Stone Game
10090 600 Marbles
10566 595 Crossed Ladders
10029 594 Edit Step Ladders
10928 594 My Dear Neighbours
603 593 Parking Lot
10261 593 Ferry Loading
616 591 Coconuts, Revisited
604 591 The Boggle Game
10446 591 The Marriage Interview :-)
10880 590 Colin and Ryan
10739 589 String to Palindrome
10306 588 e-Coins
10507 587 Waking up brain
627 585 The Net
672 583 Gangsters
10092 581 The Problem with the Problem Setter
10227 581 Forests
548 577 Tree
222 577 Budget Travel
449 577 Majoring in Scales
10593 577 Kites
10871 577 Anti-Primes
10337 574 Flight Planner
10947 573 Bear with me, again..
381 572 Making the Grade
554 572 Caesar Cypher
10246 571 Asterix and Obelix
10813 569 Traditional BINGO
221 569 Urban Elevations
10930 566 A-Sequence
10389 565 Subway
347 564 Run, Run, Runaround Numbers
705 564 Slash Maze
10650 563 Determinate Prime
10039 561 Railroads
416 561 LED Test
10493 559 Cats, with or without Hats
10171 558 Meeting Prof. Miguel...
10879 558 Code Refactoring
10651 558 Pebble Solitaire
10574 556 Counting Rectangles
732 555 Anagrams by Stack
10602 554 Editor Nottobad
451 553 Poker Solitaire Evaluator
11039 552 Building designing
10484 551 Divisibility of Factors
10926 550 How Many Dependencies?
10637 549 Coprimes
10976 546 Fractions Again?!
10308 546 Roads in the North
10667 544 Largest Block
276 544 Egyptian Multiplication
10309 541 Turn the Lights Off
242 541 Stamps and Envelope Size
586 540 Instant Complexity
10528 539 Major Scales
837 538 Light and Transparencies
10254 537 The Priest Mathematician
892 535 Finding words
10536 534 Game of Euler
10910 533 Marks Distribution
10791 532 Minimum Sum LCM
10856 532 Recover Factorial
10164 530 Number Game
10617 528 Again Palindrome
10210 527 Romeo and Juliet !
10497 526 Sweet Child Makes Trouble
464 525 Sentence/Phrase Generator
10801 523 Lift Hopping
529 522 Addition Chains
10908 521 Largest Square
10047 520 The Monocycle
10313 520 Pay the Price
10419 519 Sum-up the Primes
10296 519 Jogging Trails
671 519 Spell checker
10527 518 Persistent Numbers
10669 517 Three powers
410 516 Station Balance
380 514 Call Forwarding
517 512 Word
487 511 Boggle Blitz
710 510 The Game
10918 510 Tri Tiling
622 509 Grammar Evaluation
10894 507 Save Hridoy
10325 506 The Lottery
782 504 Contour Painting
10120 503 Gift?!
588 502 Video Surveillance
338 502 Long Multiplication
10460 500 Find the Permuted String
707 499 Robbery
735 495 Dart-a-Mania
312 495 Crosswords (II)
869 494 Airline Comparison
10774 494 Repeated Josephus
10625 493 GNU = GNU'sNotUnix
10278 492 Fire Station
10060 489 A hole to catch a man
10146 489 Dictionary
721 489 Invitation Cards
10717 486 Mint
10541 484 Stripe
10466 482 How Far?
10212 482 The Last Non-zero Digit.
10920 482 Spiral Tap
10773 480 Back to Intermediate Math
426 479 Fifth Bank of Swamp County
296 479 Safebreaker
11057 478 Exact Sum
10503 478 The dominoes solitaire
718 477 Skyscraper Floors
658 475 It's not a Bug, it's a Feature!
880 474 Cantor Fractions
10925 474 Krakovia
313 472 Intervals
10946 472 You want what filled?
10160 470 Servicing Stations
10097 470 The Color Game
10453 469 Make Palindrome
11044 468 Searching for Nessy
403 467 Postscript
656 465 Optimal Programs
10721 465 Bar Codes
10610 464 Gopher and Hawks
10178 464 Count the Faces.
334 463 Identifying Concurrent Events
647 461 Chutes and Ladders
10865 460 Brownie Points
10586 460 Polynomial Remains
10401 459 Injured Queen Problem
520 459 Append
395 456 Board Silly
10742 453 The New Rule in Euphomia
10233 451 Dermuba Triangle
11015 451 05-2 Rendezvous
157 451 Route Finding
150 448 Double Time
10522 448 Height to Area
10236 446 The Fibonacci Primes
10543 445 Traveling Politician
10603 444 Fill
10289 443 A Square and Equilateral Triangles
753 443 A Plug for UNIX
10646 443 What is the Card?
268 443 Double Trouble
719 441 Glass Beads
851 441 Maze
172 438 Calculator Language
10576 438 Y2K Accounting Bug
10895 438 Matrix Transpose
10333 438 The Tower of ASCII
759 437 The Return of the Roman Empire
10585 437 Center of symmetry
10771 435 Barbarian tribes
10816 434 Travel in Desert
158 433 Calendar
10428 433 The Roots
10959 432 The Party, Part I
10075 431 Airlines
211 429 The Domino Effect
175 429 Keywords
557 429 Burger
10158 428 War
10677 426 Base Equality
10830 425 A New Function
274 424 Cat and Mouse
393 424 The Doors
373 424 Romulan Spelling
10578 423 The Game of 31
10741 423 Magic Cube
10554 422 Calories from Fat
415 421 Sunrise
10912 421 Simple Minded Hashing
10616 420 Divisible Group Sums
10174 417 Couple-Bachelor-Spinster Numbers.
698 416 Index
10806 415 Dijkstra, Dijkstra.
10203 415 Snow Clearing
10312 413 Expression Bracketing
10776 413 Determine The Combination
10718 411 Bit Mask
345 410 It's Ir-Resist-Able!
10094 410 Place the Guards
10410 407 Tree Reconstruction
385 407 DNA Translation
10045 405 Echo
10892 404 LCM Cardinality
702 403 The Vindictive Coach
10911 403 Forming Quiz Teams
387 402 A Puzzling Problem
10827 402 Maximum sum on a torus
10382 402 Watering Grass
10635 402 Prince and Princess
10440 402 Ferry Loading II
181 402 Hearts
10986 401 Sending email
10821 399 Constructing BST
11055 399 Homogeneous squares
10720 399 Graph Construction
10896 399 Known Plaintext Attack
11059 398 Maximum Product
11063 395 B2-Sequence
10024 394 Curling up the cube
10662 392 The Wedding
341 391 Non-Stop Travel
11026 391 A Grouping Problem
736 388 Lost in Space
810 387 A Dicey Problem
179 387 Code Breaking
10672 387 Marbles on a tree
427 386 FlatLand Piano Movers
10350 385 Liftless EME
349 384 Transferable Voting (II)
10575 383 Polylops
10891 382 Game of Sum
425 382 Enigmatic Encryption
399 382 Another Puzzling Problem
10958 381 How Many Solutions?
10823 380 Of Circles and Squares
10804 378 Gopher Strategy
10567 377 Helping Fill Bates
10284 376 Chessboard in FEN
760 376 DNA Sequencing
865 375 Substitution Cypher
10113 375 Exchange Rates
178 375 Shuffling Patience
308 375 Tin Cutter
358 372 Don't Have A Cow, Dude
10234 372 Frequent Substrings
10532 371 Combination! Once Again
662 371 Fast Food
10520 370 Determine it
10023 368 Square root
10250 367 The Other Two Trees
10564 367 Paths through the Hourglass
10387 367 Billiard
10944 367 Nuts for nuts..
10477 366 The Hybrid Knight
10902 366 Pick-up Sticks
432 366 Modern Art
10264 365 The Most Potent Corner
645 364 File Mapping
452 364 Project Scheduling
10173 363 Smallest Bounding Rectangle
663 363 Sorting Slides
10670 362 Work Reduction
10149 362 Yahtzee
390 362 Letter Sequence Analysis
10157 360 Expressions
10109 360 Solving Systems of Linear Equations
10557 359 XYZZY
10842 358 Traffic Flow
10433 358 Automorphic Numbers
10328 357 Coin Toss
10862 356 Connect the Cable Wires
897 356 Anagrammatic Primes
10994 355 Simple Addition
10378 355 Complex Numbers
388 354 Galactic Import
149 354 Forests
758 352 The Same Game
609 352 Metal Cutting
10626 352 Buying Coke
398 351 18-Wheeler Caravans (aka Semigroups)
10248 350 The Integer All-time Champ
613 350 Numbers That Count
10559 350 Blocks
10228 347 Star not a Tree?
10111 347 Find the Winning Move
10217 345 A Dinner with Schwarzenegger!!!
180 345 Eeny Meeny
10685 345 Nature
10396 344 Vampire Numbers
173 344 Network Wars
10663 344 Non-Powerful Subsets
10569 344 Number Theory
10973 343 Triangle Counting
10449 343 Traffic
10688 342 The Poor Giant
10317 342 Equating Equations
633 342 A Chess Knight
10232 341 Bit-wise Sequence
10167 341 Birthday Cake
10690 340 Expression Again
871 337 Counting Cells in a Blob
10416 337 Folding My T-Shirt
10681 337 Teobaldo's Trip
10083 337 Division
257 333 Palinwords
11001 333 Necklace
405 332 Message Routing
521 331 Gossiping
10406 330 Cutting tabletops
752 330 Unscrambling Images
10978 329 Let's Play Magic!
10744 329 The Optimal Super-Highway
10535 329 Shooter
745 327 Numeric Puzzles Again!
10148 327 Advertisement
518 326 Time
171 326 Car Trialling
811 326 The Fortified Forest
430 324 Swamp County Supervisors
10890 324 Maze
10256 324 The Great Divide
11054 324 Wine trading in Gergovia
10604 323 Chemical Reaction
169 323 Xenosemantics
11012 322 Cosmic Cabbages
11056 322 Formula 1
10480 321 Sabotage
10068 321 The Treasure Hunt
10787 320 Modular Equations
10439 320 Temple of Dune
10851 319 2D Hieroglyphs decoder
10716 319 Evil Straw Warts Live
10058 319 Jimmi's Riddles
10506 319 The Ouroboros problem
10898 319 Combo Deal
185 318 Roman Numerals
258 317 Mirror Maze
428 317 Swamp County Roofs
10436 316 Cheapest way
10505 315 Montesco vs Capuleto
592 315 Island of Logic
215 313 Spreadsheet Calculator
787 313 Maximum Sub-sequence Product
10351 313 Cutting Diamonds
10459 312 The Tree Root
267 312 Of(f) Course!
10819 311 Trouble of 13-Dots
10517 311 Wind of Change!
10134 310 AutoFish
10385 310 Duathlon
453 308 Intersecting Circles
10722 307 Super Lucky Numbers
10316 307 Airline Hub
10555 307 Dead Fraction
10421 307 Critical Wave
10666 307 The Eurocup is Here!
695 306 Placing the Ops
10668 306 Expanding Rods
10634 304 Say NO to Memorization
684 304 Integral Determinant
10792 303 The Laurel-Hardy Story
10257 302 Dick and Jane
570 302 Stats
10914 302 Abundance and Perfect Numbers
10342 302 Always Late
10710 302 Chinese Shuffle
11067 301 Little Red Riding Hood
625 300 Compression
10331 300 The Flyover Construction
10785 300 The Mad Numerologist
10085 299 The most distant state
10238 299 Throw the Dice
11064 299 Number Theory
10243 298 Fire! Fire!! Fire!!!
563 298 Crimewave
10933 297 Volleyball
500 297 Table
10255 296 The knight's Tour
10606 295 Opening Doors
561 295 Jackpot
10917 293 Walk Through the Forest
10855 293 Rotated square
845 292 Gas Station Numbers
824 292 Coast Tracker
10746 292 Crime Wave - The Sequel
298 291 Race Tracks
10483 291 The Sum Equals the Product
814 291 The Letter Carrier's Rounds
10263 290 Railway
10547 290 Hidden Truth in Recurrence
10386 290 Circles in Triangle
11069 290 A Graph Problem
10318 289 Security Panel
10802 288 Lex Smallest Drive
346 288 Getting Chorded
10609 288 Fractal
10874 287 Segments
519 287 Puzzle (II)
182 287 Bonus Bonds
10814 287 Simplifying Fractions
433 286 Bank (Not Quite O.C.R.)
10537 286 The Toll! Revisited
10733 285 The Colored Cubes
11002 285 Towards Zero
10352 285 Count the eWords
10086 284 Test the Rods
10540 284 Flowers of a Beautiful Mind
10214 283 Trees in a Wood.
10136 283 Chocolate Chip Cookies
11003 282 Boxes
10909 282 Lucky Number
10339 281 Watching Watches
10277 280 Boastin' Red Socks
10750 280 Beautiful Points
10475 280 Help the Leaders
10269 280 Adventure of Super Mario
10698 279 Football Sort
610 279 Street Directions
10021 278 Cube in the labirint
11008 278 Antimatter Ray Clearcutting
512 278 Spreadsheet Tracking
174 278 Strategy
10999 278 Crabbles
407 277 Gears on a Board
10288 276 Coupons
10320 276 Cow Trouble! Help Please!!
10991 275 Region
10218 275 Let's Dance !!!
10655 274 Contemplation - Algebra
10373 274 The Brick Stops Here
11032 274 Function Overloading
303 274 Pipe
198 273 Peter's Calculator
10938 273 Flea circus
330 271 Inventory Maintenance
669 271 Defragment
10793 271 The Orc Attack
10180 270 Rope Crisis in Ropeland!
858 269 Berry Picking
11053 269 Flavius Josephus Reloaded
230 269 Borrowers
11062 269 Andy's Second Dictionary
11029 269 Leading and Trailing
757 268 Gone Fishing
505 268 Moscow time
10495 268 Conic Distance
10977 268 Enchanted Forest
10570 268 Meeting with Aliens
10426 267 Knights' Nightmare
10349 267 Antenna Placement
10964 267 Strange Planet
783 267 Trains
716 266 Commedia dell' arte
10089 266 Repackaging
866 265 Intersecting Line Segments
11042 265 Complex, difficult and complicated
10759 265 Dice Throwing
11058 264 Encoding
653 263 Gizilch
10118 263 Free Candies
10549 263 Russian Dolls
10901 262 Ferry Loading III
10587 262 Mayor's posters
10425 261 Mobile Destroyer
361 261 Cops and Robbers
11045 261 My T-shirt suits me
411 261 Centipede Collisions
10027 260 Language Cardinality
11068 260 An Easy Task
10956 259 Prime Suspect
10529 259 Dumb Bones
10441 259 Catenyms
10329 258 Combinatorial Expression
856 257 The Vigenère Cipher
10889 256 The Lost Gift
10942 256 Can of Beans
11022 256 String Factoring
742 255 Domino Game
10715 254 Cat
765 254 References
10512 253 A Day in Math-land
10562 252 Undraw the Trees
10992 251 The Ghost of Programmers
838 250 Worm World
10280 250 Old Wine Into New Bottles
10545 249 Maximal Quadrilateral
10560 249 Minimum Weight
247 249 Calling Circles
10740 248 Not the Best
194 247 Triangle
192 246 Synchronous Design
10915 246 War on Weather
366 245 Cutting Up
599 245 The Forrest for the Trees
629 245 Test
10239 243 The Book-shelver's Problem
10237 243 Bishops
10660 243 Citizen attention offices
10769 243 Pillars
10444 243 Multi-peg Towers of Hanoi
309 242 FORCAL
10457 242 Magic Car
10525 242 New to Bangladesh?
10357 242 Playball !!!
747 241 Grid Soccer
335 241 Processing MX Records
10343 240 Base64 Decoding
10275 239 Guess the Number!
852 239 Deciding victory in Go
10927 238 Bright Lights
11048 238 Automatic Correction of Misspellings
10423 237 Peter Takes a Tramway
10390 236 Bean Counting
10274 236 Fans and Gems
10807 236 Prim, Prim.
10932 236 Calculator
560 236 Magic
10860 236 Many a Little makes a Mickle
10577 236 Bounding box
10887 235 Concatenation of Languages
10937 234 Blackbeard the Pirate
552 234 Filling the Gaps
10731 234 Test
618 233 Doing Windows
10854 233 Number of Paths
650 233 Bowl
10225 232 Discrete Logging
10445 232 Make Polygon
10831 232 Gerg's Cake
10980 232 Lowest Price in Town
10694 232 Combinatorial Summation
10144 231 Expression
10247 230 Complete Tree Labeling
835 230 Square of Primes
685 230 Least Path Cost
10413 229 Crazy Savages
10563 229 Least Squares
261 228 The Window Property
10073 228 Constrained Exchange Sort
11060 228 Beverages
10072 227 Bob Laptop Woolmer and Eddie Desktop Barlow
10777 227 God! Save me
10592 226 Freedom Fighter
10461 226 Difference
10208 226 Liar or Not Liar that is the...
559 225 Squares (II)
10156 225 Sala-ma-Sond, A Nice Little Pond
10843 225 Anne's game
10748 224 Knights Roaming
10950 224 Bad Code
10471 224 Can't be too GREEDY
10462 223 Is There A Second Way Left?
10138 223 CDVII
10028 222 Demerit Points
10479 222 The Hendrie Sequence
10619 222 Advanced Causal Measurements
659 221 Reflections
10384 221 The Wall Pushers
10244 220 First Love !!!
10963 220 The Swallowing Ground
10175 220 Sphere
10990 220 Another New Function
10713 220 Map
323 219 Jury Compromise
10598 219 Find the Latitude
10366 217 Faucet Flow
10454 217 Trexpression
10761 216 Broken Keyboard
10381 214 The Rock
10319 213 Manhattan
11038 212 How Many O's?
10709 212 Intersection is Not that Easy
731 212 Numerical Summation of a Series
10544 211 Numbering the Paths
799 211 Safari Holiday
10464 211 Big Big Real Numbers
10488 211 Swimming Gopher
10870 211 Recurrences
10169 210 Urn-ball Probabilities !
10900 210 So you want to be a 2n-aire?
11027 210 Palindromic Permutation
10262 210 Suffidromes
10648 209 Chocolate Box
199 209 Partial differential equations
197 209 Cube
10822 208 Planet of the Rock, Paper and Scissors
10123 206 No Tipping
10516 206 Another Counting Problem
10511 206 Councilling
10805 206 Cockroach Escape Networks
10734 206 Triangle Partitioning
595 205 A Major Problem
10207 205 The Unreal Tournament
10877 204 Diceoids
10514 204 River Crossing
708 204 Dreisam Equations
10732 204 The Strange Research
10858 204 Unique Factorization
10687 203 Monitoring the Amazon
10897 203 Travelling Distance
10624 203 Super Number
828 201 Deciphering Messages
751 201 Triangle War
10556 200 Biometrics
10883 200 Supermean
10345 199 Cricket/Football Goes Down
10844 198 Bloques
10553 198 Treasure Map
10590 198 Boxes of Chocolates Again
10114 197 Loansome Car Buyer
10091 197 The Valentine's Day
11021 197 Tribles
10463 197 Aztec Knights
593 197 MBone
676 197 Horse Step Maze
766 197 Sum of powers
10934 196 Dropping water balloons
10913 196 Walking on a Grid
10594 196 Data Flow
10448 196 Unique World
635 195 Clock solitaire
250 195 Pattern Matching Prelims
10230 194 Savage Garden
527 194 The partition of a cake
10893 194 Creating Sudoku Puzzles
10728 193 Help!
10291 193 Cut the Legs
10273 193 Eat or Not to Eat?
10468 193 Rigid Circle Packing
10782 193 Send More Money
10348 192 Submarines
10623 192 Thinking Backward
10875 191 Big Math
10998 191 Flipping Colors
10011 190 Where Can You Hide?
10076 190 The Bumpy Robot
10866 190 Magic Bitstrings
10542 189 Hyper-drive
10398 189 The Golden Pentagon
376 188 More Triangles ... THE AMBIGUOUS CASE
11070 188 The Good Old Times
10631 188 Normals
10868 187 Bungee Jumping
10725 187 Triangular Square
10418 186 Hyper Toy Soldiers
10122 186 Mysterious Mountain
10481 185 The Gift Wrappers of Hollywood
10417 185 Gift Exchanging
893 185 Y3K Problem
10548 185 Find the Right Changes
10872 184 Triangles
10649 184 Danger Point
515 184 King
11034 184 Ferry Loading IV
10231 183 Matrix World
328 182 The Finite State Text Processing Machine
10581 182 Partitioning for fun and profit
10367 181 Equations
10430 180 Dear GOD, Pardon Me
10659 180 Fitting Text into Slides
10765 180 Doves and bombs
11049 179 Basic wall maze
10923 179 Seven Seas
431 179 Trial of the Millennium
259 179 Software Allocation
11004 179 Changing Roadmap
419 177 Matching Meetings
10552 177 Genealogical Research
288 177 Arithmetic Operations With Large Integers
10848 177 Make Palindrome Checker
10442 177 Basic
566 176 Adam's Genes
830 176 Shark
10412 176 Big Big Trees
10989 176 Bomb, Divide and Conquer
10724 176 Road Construction
229 175 Scanner
10888 175 Warehouse
10145 175 Lock Manager
872 175 Ordering
643 175 Bulk Mailing
754 174 Treasure Hunt
10355 174 Superman
648 174 Stamps (II)
680 173 Movement of Reading Head
775 172 Hamiltonian Cycle
10582 172 ASCII Labyrinth
10597 172 Right Words
10987 171 Antifloyd
10658 171 ReArrange
10832 170 Yoyodyne
10882 170 Koerner's Pub
11036 169 Eventually Periodic Sequence
10644 167 Floor Tiles
10824 166 Regular Polygon
682 166 Whoever-pick-the-last-one-lose
10697 166 Firemen barracks
240 165 Variable Radix Huffman Encoding
10486 165 Mountain Village
10568 165 n Group k
10388 164 Snap
10372 163 Leaps Tall Buildings (in a single bound)
11011 163 Numerical Methods! A Satire
189 162 Pascal Program Lengths
10817 162 Headmaster's Headache
10707 161 2D-Nim
10621 160 Jack and Jill
10599 160 Robots(II)
176 159 City Navigation
600 159 A Duckpin Tournament
10982 159 Troublemakers
10652 159 Board Wrapping
795 158 Sandorf's Cipher
10524 158 Matrix Reloaded
10735 158 Euler Circuit
226 158 MIDI Preprocessing
10692 158 Huge Mods
10643 157 Facing Problem With Trees
10561 157 Treblecross
709 157 Formatting Text
831 156 Document Validator
10835 156 Playing with Coins
10211 155 Divisibility Testing! Wow!
10353 155 Circles in Hexagon :-)
10799 155 OOPS! They did it Again...
239 155 Tempus et mobilius. Time and motion
734 155 The Programmer's Hex
606 154 Keeps Going and Going and ...
11072 154 Points
767 154 Game
10052 153 Inviting Politicians
660 153 Going in circles on Alpha Centauri
860 153 Entropy Text Analyzer
10186 152 Euro Cup 2000
10376 152 Snakes
10686 152 SQF Problems
10251 151 Min-Max Cake
310 151 L--system
10571 151 Products
163 150 City Directions
10627 150 Infinite Race
806 150 Spatial Structures
10053 150 Envelopes
10811 149 Up the Ante
10084 148 Hotter Colder
10117 148 Nice Milk
10850 147 The Gossipy Gossipers Gossip Gossips
10708 147 Cheetah
10476 147 Spam or Not Spam
10335 147 Ray Inside a Polygon
10838 146 The Pawn Chess
11051 146 Dihedral groups
844 145 Pousse
11024 144 Circular Lock
11047 144 The Scrooge Co Problem
10615 143 Rooks
10601 143 Cubes
10825 142 Anagram and Multiplication
10163 142 Storage Keepers
10294 142 Arif in Dhaka (First Love Part 2)
251 141 Nondeterministic Trellis Automata
10124 140 Subway
10558 140 A Brief Gerrymander
10772 139 Rose windows
10747 139 Maximum Subsequence
10595 139 Knight on the Bee Board
553 138 Simply proportion
10665 138 Diatribe against Pigeonholes
10818 137 Dora Trip
841 137 Snake
857 137 Quantiser
11046 137 Numbers and operations
10654 137 The Uxuhul Voting System
10764 137 Signed-digit numbers
667 136 Fence
502 136 DEL command
10172 135 The Lonesome Cargo Distributor
10755 134 Garbage Heap
277 133 Cabinets
10723 133 Cyborg Genes
10661 133 The Perspectographer
11028 133 Sum of Product
319 132 Pendulum
404 132 Radar Scopes
10798 132 Be wary of Roses
10645 131 Menu
10726 131 Coco Monkey
10399 131 Optimus Prime
10949 131 Kids in a Grid
10754 131 Fantastic Sequence
10736 131 Series of PI
10985 130 Rings'n'Ropes
10993 129 Ignoring Digits
11031 128 Looking for a Subset
10984 128 Double NP-hard
10380 128 Shogi Tournament
577 128 WIMP
10253 128 Series-Parallel Networks
10647 127 Optimal House Placement
10321 127 Polygon Intersection
10184 126 Equidistance
10682 126 Forró Party
10953 125 Stochastic Digit Generator
10265 125 Toroidal Chess Queens' Problem
10458 125 Cricket Ranking
10501 125 Simplified Shisen-Sho
10546 125 The Eagle's Nest
396 124 Top Dog
10332 124 The Absent Minded Professor
738 124 A Logical Problem
11020 123 Efficient Solutions
664 123 Single-Player Games
840 121 Deadlock Detection
10166 121 Travel
10618 120 Tango Tango Insurrection
870 119 Intersecting Rectangles
882 119 The Mailbox Manufacturers Problem
10185 119 Phylogenetic Trees Inherited
11019 118 Matrix Matcher
10837 117 A Research Problem
10704 117 Traffic!
10447 116 Sum-up the Primes (II)
790 116 Head Judge Headache
874 116 2D Representations
10292 115 The Gossiping System
10788 115 Parenthesizing Palindromes
11073 115 Euler's Totient Function
744 115 Triangular Museum
210 114 Concurrency Simulator
899 114 Colour Circles
10983 113 Buy one, get the rest free
10498 113 Happiness
11014 113 Make a Crystal
420 112 Supercomputer Selection, The Sequel
506 112 System Dependencies
10886 112 Standard Deviation
715 111 Substitution Cipher
10270 110 Bigger Square Please...
503 110 Parallelepiped walk
878 110 Rotating Tetris Pieces
10526 109 Intellectual Property
816 109 Abbott's Revenge
817 108 According to Bartjens
10751 107 Chessboard
10695 107 Find the Point
10881 107 Piotr's Ants
10095 106 Saving the Planet
10794 106 The Deadly Olympic Returns!!!
10431 105 Normal Distribution
10362 105 Trains
10358 105 Matrix
722 104 Lakes
10941 104 Words adjustment
11035 104 Card Hands
10839 104 The Curse of Barbosa
317 103 Hexagon
832 103 Financial Risk
10434 103 Working With Specific Gravity
10521 102 Continuously Growing Fractions
10826 102 Hot or Cold?
286 102 Dead Or Not -- That Is The Question
10981 102 String Morphing
283 102 Compress
10087 102 The Tajmahal of ++Y2k
848 102 Fmt
10607 101 Siege
10240 100 The n-Dimensional Cities
10437 100 Playing With Fraction
206 100 Meals on Wheels Routing System
10395 100 Titans in Danger
10906 100 Strange Integration
10030 100 Computer Dialogue
10795 99 A Different Task
689 98 Napoleon's Grumble
10727 98 Practice
10538 98 Powerful Magic Squares
10613 97 Mushroom Misery
316 97 Stars
764 97 Pentominos
10904 97 Structural Equivalence
10403 96 Escape from Tut's Tomb
10836 96 The Maximum Term
10133 94 Audubon's Stormy Arctic Trip
10456 94 Intelligent Cats
10614 94 Dreadful Vectors
238 94 Jill's Bike
10155 94 Green Eggs and Ham
10206 93 Stars
10513 93 Bangladesh Sequences
491 93 Tile Topology
10968 93 KuPellaKeS
11013 93 Get Straight
690 93 Pipeline Scheduling
733 92 Follow the Folding Dot
692 92 BUT We Need a Diagram
11043 92 Fast and Easy Data Compressor
10768 91 Planarity
421 91 Polygonal Puzzle
10797 91 Peaceful Sharing
367 90 Halting Factor Replacement Systems
10743 89 Blocks on Blocks
842 89 Crossword Puzzles
365 89 Welfare Reform
829 89 Almost Balanced Trees
10216 88 The Optimal Coffee Shop!!
214 88 Code Generation
10640 88 Planes around the World
10580 87 Ransom Note
611 87 Parallel Deadlock
10531 87 Maze Statistics
10775 86 Mystical Matrix
10472 86 Fastest Vs Cheapest
10674 86 Tangents
802 86 Lead or Gold
10936 86 Land surveyor's job
11061 86 Playing War
883 86 Overlapping Rectangles
10841 85 Lift Hopping in the Real World
504 85 Random number
859 85 Chinese Checkers
10411 84 Another Game of Tetris
11033 84 Help my Brother
10997 83 Medals
11010 83 Tic-Tac-Tough
10939 83 Ants, Aphids and a Ladybug
10766 83 Organising the Organisation
10767 83 Barcelona's trams
655 82 Scrabble
10224 82 Return of the Jedi
10159 82 Star
10438 81 Meta Editor
10979 80 How Many Triangles?
10379 80 Pit Stop Strategy
10873 79 Splat, Inc.
10828 79 Back to Kernighan-Ritchie
10711 78 Stitching
631 78 Microzoft Calendar
269 78 Counting Patterns
10876 78 Factory Robot
10467 77 Parse Tree
678 76 Schedule of Taiwan Baseball League
10962 76 Don Giovanni's Last Dinner
10760 76 Translation or rotation
10470 76 Shifted Coefficient Number System
10853 76 Pablito nailed a nail
10869 76 Brownie Points II
10455 75 Gray Code
873 75 Loan (II)
10796 75 Right Hand Rule
10729 74 Treequivalence
898 74 Hole Cutter
10899 74 Billiard again
10770 73 Sokoban
826 73 Symbolic Numerical System
10829 73 L-Gap Substrings
10786 72 Qualify for the Champions League
11007 72 Mini Cube
818 72 Cutting Chains
266 70 Stamping Out Stamps
10429 70 Mohr's Circle
853 70 DVD Subtitles
10951 69 Polynomial GCD
10834 69 The Story of Two Coins
10135 69 Herding Frosh
10975 69 Dueue's Quiz
10322 69 The Four in One Stadium
10632 69 Pyramid
10960 69 The Party, Part II
578 69 Polygon Puzzler
10712 68 Count the Numbers
10272 68 DDR King
564 68 Gaston
11052 67 Economic phone calls
728 67 Scatter Point Plot
10995 67 Educational Journey
11025 66 Mr. And Mrs. Hamilton
10859 66 Placing Lampposts
10314 66 Three Pigs
10753 66 Exponential Function
10965 66 Khepel's Problem
10204 66 Adventures in Moving - Part V
804 66 Petri Net Simulation
10629 66 Truckin'
10572 66 Black & White
10779 66 Collectors Problem
10809 65 Great Circle
10752 65 Distant Jumping
10121 65 Legendary Pokemon
581 65 Word Search Wonder
285 65 Crosswords
10638 65 The Trip II
10641 64 Barisal Stadium
265 63 Dining Diplomats
881 62 Points, Polygons and Containers
10588 62 Queuing at the doctors
10612 62 Paper Folding
10833 60 Lunar Forest
10907 60 Art Gallery
819 60 Gifts Large and Small
10671 60 Grid Speed
10749 60 Automobile Travelling
207 59 PGA Tour Prize Money
246 59 10-20-30
370 58 Bingo
868 58 Numerical Maze
10119 58 Farewell, my friend
10478 57 The Falling Pillars
879 57 Circuit Nets
11071 56 Permutation Representation
827 56 Buddy Memory Allocator
234 56 Switching Channels
11016 55 Square Counting
262 55 Transferable Voting
11018 55 Mars Buggy
473 54 Raucous Rockers
11065 54 A Gentlemen's Agreement
10676 53 Grid Points
10402 53 Triangle Covering
10867 52 Cutting a Polygon
10108 52 The Mosquito Killer Mosquitos
10847 52 Basic Tautologies
342 52 HTML Syntax Checking
243 52 Theseus and the Minotaur (II)
10565 52 Matrix
10885 52 Martin the Gardener
10143 50 Loan
549 50 Evaluating an Equations Board
823 50 Stopper Stumper
683 49 Character Decoding
809 49 Bullet Hole
237 49 Monitoring Wheelchair Patients
359 49 Sex Assignments And Breeding Experiments
569 48 Horse Shoe Scoring
10103 48 Karpovich blocks
877 48 Offset Polygons
10808 47 Rational Resistors
10064 47 Travelling in another Dimension
10996 47 Go
10435 46 Compare Directories
10969 46 Sweet Dream
777 46 Codebreakers
10266 46 Surveying
10605 46 Mines For Diamonds
10241 46 Semi-triangular and also Square
11017 45 A Greener World
10863 45 Shovelling Snow
10864 45 The Predator
10884 45 Persephone
11030 45 Predator II
304 44 Department
10584 43 Text Formalization
225 43 Golygons
822 43 Queue and A
769 43 Magic of David Copperfield
282 43 Rename
203 42 Running Lights Visibility Calculator
205 42 Getting There
10153 41 New Horizons
10967 41 The Great Escape
10031 41 Saskatchewan
329 41 PostScript Emulation
289 41 A Very Nasty Text Formatter
475 40 Wild Thing
10675 40 Revenge of Faucet Flow
10414 40 Denki Blocks
546 40 Image Recognizer
10691 40 Subway
10758 39 Journey
284 38 Logic
10628 38 Quadrills
813 36 Robot
293 36 Bits
10952 35 Pattern Transformations
730 35 Morse Code Generation
204 35 Robot Crash
244 34 Train Time
10756 34 HardNumbers
11006 33 Wheel Good
10737 32 The Difference Engine
11066 31 Aragorn
10961 30 Chasing After Don Giovanni
807 30 Towers of Powers
746 29 Polygon Visibility
891 29 Syntrax
11050 29 Construct the wall maze
666 28 Rating
10151 27 Spaghetti
605 27 The Rotating Disk
890 27 Maze (II)
10955 26 Playfair Cipher
223 25 Classifying Lots in a Subdivision
322 25 Ships
10636 25 Stretching Geometry
279 25 Spin
10657 25 Prince Frog II
687 24 Lattice Practices
10988 24 From G to H and back
10846 24 Reading time from a clock
720 23 Hares and Foxes
10485 23 Painting with CSE
862 23 Origami
10972 23 RevolC FaeLoN
249 22 Bang the Drum Slowly
10096 22 The Richest Man of the Universe
295 21 Fatman
723 21 Comment Removal
11023 21 Multisets and Sequences
11009 21 Geometry Once Again
797 20 Two Way Traffic
691 20 Triangle Partition
798 19 Tile Puzzle
885 19 Telephone Directory Alphabetization
794 19 Straightest Paths
889 18 Islands
864 18 Scheme Pretty-Printing
10046 18 Fold-up Patterns
786 18 Working with Relations
11041 18 Quarter-Finals with Brazil!? No!!!
849 18 Radar Tracking
11037 17 Point of View in Flatland
233 17 Package Pricing
10861 17 Security by Ambiguity
887 17 Revolutionary Calendar
10639 16 Square Puzzle
646 16 The Gourmet Club
854 16 Worse Code
281 16 Rubik's Cube
888 14 Donkey
749 14 Machine Repair Simulation
212 14 Use of Hospital Facilities
886 14 Named Extension Dialing
693 14 Digital Racing Circuit
10762 14 Treasure Castle
10857 14 Easter Eggs
235 13 Typesetting
10492 13 Optimal Mastermind Strategy
463 13 Polynomial Factorization
241 12 Sail Race
10778 11 Mathemagicland
248 11 Cutting Corners
10383 10 Queen vs Rook
801 10 Flight Planning
292 9 Presentation Error
10630 9 Millennium Ceremony
217 9 Radio Direction Finder
525 8 Milk Bottle Data
894 6 Juggling Trams
354 5 Crazy Calculator
10974 4 The Ridiculous Game
10971 4 Building Construction
10059 3 The Hazard of CSE Department!
10757 2 Interpreting SQL
10840 1 Multi-stage Compressor
10966 1 3KP-BASH Project
896 1 Board Game
236 1 VTAS - Vessel Traffic Advisory Service
10781 0 Global Positioning System
10845 0 The crusades
863 0 Process Scheduling
219 0 Department of Redundancy Department
224 0 Kissin' Cousins
228 0 Resource Allocation
252 0 Trucking
287 0 Text Comparsion
351 0 ``Cheapest'' Scores
360 0 Don't Get Hives From This One!
363 0 Approximate Matches
364 0 Constitutional Computing
368 0 Indexing Web Pages
372 0 WhatFix Notation
456 0 Robotic Stacker
461 0 The Reservation Maker
470 0 Nasty Virus
472 0 Simultaneous Equations
479 0 Irrigation Flow Rates
480 0 Tempus Fugit
508 0 Morse Mismatches
509 0 RAID!
510 0 Optimal Routing
511 0 Do You Know the Way to San Jose?
513 0 Window Frames
522 0 Schedule Problem
528 0 The Problem of Train Setout
582 0 Randomly Wired Neural Nets
596 0 The Incredible Hull
597 0 Last Name First, Please
649 0 You Who?
675 0 Convex Hull of the Polygon
717 0 Calculating Expressions on Turing Machine
724 0 Reverse
761 0 Transform those strings
768 0 Crossword
770 0 Puncher
771 0 Flying Stars
772 0 Divide et unita
773 0 The JustaPox Language
774 0 Driving in City Squares
778 0 Recording a tape
779 0 Wily Hacker's Problem
780 0 Sentence Generator
781 0 Optimisation
788 0 One Day Tours
789 0 Indexing
791 0 Term Reductions
792 0 Program Modules
800 0 Crystal Clear
803 0 Page Selection by Keyword Matching
805 0 Polygon Intersections
867 0 Storing Images in a Sequence
875 0 Monopoly
876 0 Balanced Expressions
102 15736 Ecological Bin Packing
10018 12312 Reverse and Add
10071 12271 Back to High School Physics
105 11471 The Skyline Problem
10055 11238 Hashmat the Brave Warrior
10038 10401 Jolly Jumpers
10013 9934 Super long sums
136 9906 Ugly Numbers
101 9831 The Blocks Problem
272 9830 TEX Quotes
108 9210 Maximum Sum
591 9066 Box of Bricks
10189 9066 Minesweeper
458 8933 The Decoder
495 7419 Fibonacci Freeze
488 7290 Triangle Wave
10035 7188 Primary Arithmetic
128 6865 Software CRC
382 6480 Perfection
113 6419 Power of Cryptography
673 6379 Parentheses Balance
706 6345 LCD Display
406 6312 Prime Cuts
10062 6178 Tell me the frequencies!
299 6168 Train Swapping
10004 6034 Bicoloring
10110 5989 Light, More Light
103 5917 Stacking Boxes
10082 5815 WERTYU
494 5808 Kindergarten Counting Game
160 5807 Factors and Factorials
543 5764 Goldbach's Conjecture
583 5736 Prime Factors
369 5643 Combinations
264 5473 Count on Cantor
483 5355 Word Scramble
119 5313 Greedy Gift Givers
424 5283 Integer Inquiry
408 5240 Uniform Generator
371 5203 Ackermann Functions
10008 5025 What's Cryptanalysis?
138 4977 Street Numbers
10696 4976 f91
10041 4971 Vito's Family
10300 4941 Ecological Premium
492 4933 Pig-Latin
401 4874 Palindromes
106 4872 Fermat vs. Pythagoras
445 4855 Marvelous Mazes
151 4853 Power Crisis
541 4840 Error Correction
10098 4839 Generating Fast, Sorted Permutation
10152 4764 ShellSort
579 4755 ClockHands
10006 4735 Carmichael Numbers
441 4700 Lotto
575 4684 Skew Binary
499 4489 What's The Frequency, Kenneth?
686 4451 Goldbach's Conjecture (II)
612 4449 DNA Sorting
524 4423 Prime Ring Problem
10107 4420 What is the Median?
476 4406 Points in Figures: Rectangles
112 4344 Tree Summing
107 4266 The Cat in the Hat
10370 4254 Above Average
324 4216 Factorial Frequencies
111 4117 History Grading
10033 4111 Interpreter
374 4108 Big Mod
10106 4084 Product
568 4055 Just the Facts
701 4053 The Archeologists' Dilemma
412 3999 Pi
195 3984 Anagram
400 3927 Unix ls
10340 3898 All in All
256 3883 Quirksome Squares
344 3848 Roman Digititis
120 3800 Stacks of Flapjacks
729 3774 The Hamming Distance Problem
10127 3745 Ones
231 3732 Testing the CATCHER
530 3714 Binomial Showdown
10327 3713 Flip Sort
694 3701 The Collatz Sequence
10019 3696 Funny Encryption Method
350 3687 Pseudo-Random Numbers
116 3678 Unidirectional TSP
640 3660 Self Numbers
10079 3604 Pizza Cutting
674 3601 Coin Change
10222 3487 Decode the Mad man
10405 3461 Longest Common Subsequence
294 3389 Divisors
305 3389 Joseph
10783 3381 Odd Sum
444 3370 Encoder and Decoder
10034 3363 Freckles
122 3353 Trees on the level
440 3342 Eeny Meeny Moo
104 3328 Arbitrage
438 3327 The Circumference of the Circle
443 3314 Humble Numbers
439 3285 Knight Moves
490 3282 Rotating Sentences
10469 3273 To Carry or not to Carry
10346 3255 Peter's Smoke
146 3249 ID Codes
10324 3248 Zeros and Ones
498 3231 Polly the Polynomial
477 3215 Points in Figures: Rectangles and Circles
484 3209 The Department of Redundancy Department
392 3191 Polynomial Showdown
10200 3180 Prime Time
10050 3158 Hartals
190 3155 Circle Through Three Points
167 3139 The Sultan's Successors
10003 3098 Cutting Sticks
10010 3078 Where's Waldorf?
10302 3046 Summation of Polynomials
755 3041 487--3279
386 3033 Perfect Cubes
623 3012 500!
118 2976 Mutant Flatworld Explorers
10260 2966 Soundex
572 2964 Oil Deposits
133 2944 The Dole Queue
147 2931 Dollars
10515 2908 Powers Et Al.
200 2905 Rare Order
10000 2885 Longest Paths
446 2839 Kibbles ``n'' Bits ``n'' Bits ``n'' Bits
713 2835 Adding Reversed Numbers
793 2803 Network Connections
750 2792 8 Queens Chess Problem
10282 2768 Babelfish
10252 2738 Common Permutation
356 2735 Square Pegs And Round Holes
10209 2724 Is This Integration ?
834 2719 Continued Fractions
10424 2705 Love Calculator
10161 2674 Ant on a Chessboard
621 2667 Secret Research
202 2660 Repeating Decimals
10323 2647 Factorial! You Must be Kidding!!!
10473 2642 Simple Base Conversion
10066 2635 The Twin Towers
455 2626 Periodic Strings
10220 2601 I Love Big Numbers !
291 2580 The House Of Santa Claus
489 2568 Hangman Judge
10099 2556 The Tourist Guide
10070 2553 Leap Year or Not Leap Year and ...
155 2489 All Squares
333 2480 Recognizing Good ISBNs
10137 2459 The Trip
10009 2441 All Roads Lead Where?
402 2427 M*A*S*H
496 2413 Simply Subsets
514 2412 Rails
10432 2406 Polygon Inside A Circle
10131 2396 Is Bigger Smarter?
10235 2386 Simply Emirp
536 2367 Tree Recovery
10338 2350 Mischievous Children
497 2344 Strategic Defense Initiative
739 2334 Soundex Indexing
10533 2317 Digit Primes
414 2264 Machined Surfaces
534 2255 Frogger
573 2246 The Snail
10530 2232 Guessing Game
348 2227 Optimal Array Multiplication Sequence
389 2206 Basically Speaking
124 2202 Following Orders
567 2200 Risk
10812 2197 Beat the Spread!
478 2185 Points in Figures: Rectangles, Circles, Triangles
10579 2179 Fibonacci Numbers
227 2158 Puzzle
10699 2155 Count the factors
576 2151 Haiku Review
156 2145 Ananagrams
10105 2142 Polynomial Coefficients
459 2142 Graph Connectivity
784 2134 Maze Exploration
352 2130 The Seasonal War
10195 2126 The Knights Of The Round Table
110 2126 Meta-Loopless Sorts
130 2116 Roman Roulette
450 2114 Little Black Book
10074 2112 Take the Land
562 2107 Dividing coins
10394 2105 Twin Primes
10026 2102 Shoemaker's Problem
10550 2090 Combination Lock
847 2084 A Multiplication Game
10104 2079 Euclid Problem
417 2071 Word Index
10591 2064 Happy Number
10192 2049 Vacation
232 2046 Crossword Answers
725 2044 Division
10048 2031 Audiophobia
10450 2029 World Cup Noise
516 2025 Prime Land
10409 2001 Die Game
10025 1983 The ? 1 ? 2 ? ... ? n = k problem
191 1976 Intersection
531 1969 Compromise
357 1964 Let Me Count The Ways
336 1958 A Node Too Far
10929 1951 You can say 11
271 1942 Simply Syntax
340 1941 Master-Mind Hints
117 1938 The Postal Worker Rings Once
602 1938 What Day Is It?
109 1926 SCUD Busters
10310 1921 Dog and Gopher
637 1913 Booklet Printing
10014 1908 Simple calculations
10168 1901 Summation of Four Primes
275 1887 Expanding Fractions
10042 1876 Smith Numbers
624 1873 CD
123 1859 Searching Quickly
846 1855 Steps
532 1851 Dungeon Master
836 1846 Largest Submatrix
482 1841 Permutation Arrays
544 1825 Heavy Cargo
10499 1819 The Land of Justice
193 1787 Graph Coloring
121 1785 Pipe Fitters
474 1778 Heads / Tails Probability
485 1774 Pascal's Triangle of Death
10334 1774 Ray Through Glasses
300 1772 Maya Calendar
164 1770 String Computer
315 1770 Network
10608 1768 Friends
10130 1760 SuperSale
594 1756 One Little, Two Little, Three Little Endians
10015 1750 Joseph's Cousin
10142 1744 Australian Voting
727 1730 Equation
10305 1722 Ordering Tasks
383 1714 Shipping Routes
144 1710 Student Grants
661 1710 Blowing Fuses
740 1703 Baudot Data Communication Code
216 1692 Getting in Line
10789 1689 Prime Frequency
884 1676 Factorial Factors
10193 1674 All You Need Is Love
320 1672 Border
587 1666 There's treasure everywhere!
555 1656 Bridge Hands
537 1651 Artificial Intelligence?
10611 1650 The Playboy Chimp
10139 1641 Factovisors
442 1639 Matrix Chain Multiplication
10311 1632 Goldbach and Euler
10196 1631 Check The Check
201 1631 Squares
10924 1629 Prime Words
125 1626 Numbering Paths
378 1623 Intersecting Lines
699 1620 The Falling Leaves
10420 1616 List of Conquests
10474 1615 Where is the Marble?
10101 1598 Bangla Numbers
10190 1594 Divide, But Not Quite Conquer!
10198 1585 Counting
10931 1571 Parity
642 1571 Word Amalgamation
10215 1569 The Largest/Smallest Box ...
619 1565 Numerically Speaking
145 1558 Gondwanaland Telecom
152 1554 Tree's a Crowd
154 1543 Recycling
10183 1531 How Many Fibs?
10067 1530 Playing with Wheels
448 1530 OOPS!
10921 1526 Find the Telephone
10181 1524 15-Puzzle Problem
10179 1518 Irreducable Basic Fractions
10622 1495 Perfect P-th Powers
10286 1487 Trouble with a Pentagon
159 1480 Word Crosses
413 1478 Up and Down Sequences
10922 1473 2 the 9s
10049 1470 Self-describing Sequence
10182 1467 Bee Maja
409 1465 Excuses, Excuses!
166 1465 Making Change
10116 1460 Robot Motion
306 1450 Cipher
10063 1444 Knuth's Permutation
10102 1441 The path in the colored field
10221 1436 Satellites
839 1430 Not so Mobile
278 1417 Chess
10044 1416 Erdos Numbers
574 1413 Sum It Up
153 1405 Permalex
460 1405 Overlapping Rectangles
343 1403 What Base Is This?
114 1402 Simulation Wizardry
10336 1394 Rank the Languages
10036 1386 Divisibility
10129 1384 Play on Words
465 1379 Overflow
558 1376 Wormholes
10276 1374 Hanoi Tower Troubles Again!
10125 1369 Sumsets
10509 1363 R U Kidding Mr. Feynman!
10361 1361 Automatic Poetry
168 1361 Theseus and the Minotaur
10970 1346 Big Chocolate
10295 1343 Hay Points
10299 1338 Relatives
10465 1338 Homer Simpson
469 1337 Wetlands of Florida
10170 1335 The Hotel with Infinite Rooms
337 1333 Interpreting Control Sequences
10191 1328 Longest Nap
10032 1323 Tug of War
10219 1321 Find the ways !
10487 1320 Closest Sums
280 1319 Vertex
10285 1313 Longest Run on a Snowboard
10407 1312 Simple division
10080 1307 Gopher II
507 1304 Jill Rides Again
10700 1302 Camel trading
10508 1301 Word Morphing
785 1301 Grid Colouring
636 1296 Squares (III)
10267 1295 Graphical Editor
263 1293 Number Chains
127 1292 ``Accordian'' Patience
10245 1289 The Closest Pair Problem
10002 1286 Center of Masses
10140 1281 Prime Distance
140 1281 Bandwidth
10714 1279 Ants
10400 1273 Game Show Math
355 1268 The Bases Are Loaded
630 1266 Anagrams (II)
10404 1266 Bachet's Game
115 1265 Climbing Trees
253 1262 Cube painting
454 1262 Anagrams
10100 1251 Longest Match
422 1250 Word-Search Wonder
332 1248 Rational Numbers from Repeating Fractions
10020 1247 Minimal coverage
639 1246 Don't Get Rooked
10940 1246 Throwing cards away II
423 1244 MPI Maelstrom
10258 1244 Contest Scoreboard
10205 1243 Stack 'em Up
161 1241 Traffic Lights
10701 1239 Pre, in and post
10583 1223 Ubiquitous Religions
10360 1222 Rat Attack
10077 1222 The Stern-Brocot Number System
10298 1219 Power Strings
311 1210 Packets
10642 1210 Can You Solve It?
10271 1207 Chopsticks
10017 1206 The Never Ending Towers of Hanoi
615 1205 Is It A Tree?
326 1203 Extrapolation Using a Difference Table
10800 1201 Not That Kind of Graph
10297 1197 Beavergnaw
471 1197 Magic Numbers
10656 1197 Maximum Sum (II)
628 1196 Passwords
10443 1190 Rock, Scissors, Paper
10452 1190 Marcus, help!
486 1187 English-Number Translator
10223 1180 How many nodes ?
748 1174 Exponentiation
436 1172 Arbitrage (II)
129 1167 Krypton Factor
429 1167 Word Transformation
10684 1162 The jackpot
10056 1157 What is the Probability ?
10408 1155 Farey sequences
700 1154 Date Bugs
644 1154 Immediate Decodability
10397 1150 Connect the Campus
696 1145 How Many Knights
539 1142 The Settlers of Catan
10573 1140 Geometry Paradox
10703 1138 Free spots
10539 1137 Almost Prime Numbers
10738 1135 Riemann vs Mertens
10633 1133 Rare Easy Problem
10093 1132 An Easy Problem!
762 1132 We Ship Cheap
10451 1129 Ancient Village Sports
10347 1122 Medians
10162 1116 Last Digit
353 1113 Pesky Palindromes
10702 1112 Travelling Salesman
679 1109 Dropping Balls
10242 1107 Fourth Point !!
712 1107 S-Trees
10427 1104 Naughty Sleepy Boys
681 1095 Convex Hull Finding
10226 1095 Hardwood Species
10069 1093 Distinct Subsequences
10502 1092 Counting Rectangles
808 1090 Bee Breeding
384 1084 Slurpys
297 1084 Quadtrees
10176 1083 Ocean Deep ! - Make it shallow !!
141 1080 The Spot Game
10815 1077 Andy's First Dictionary
170 1077 Clock Patience
585 1072 Triangles
10187 1072 From Dusk Till Dawn
608 1068 Counterfeit Dollar
861 1060 Little Bishops
10007 1058 Count the Trees
10489 1056 Boxes of Chocolates
820 1056 Internet Bandwidth
325 1048 Identifying Legal Pascal Real Constants
10377 1048 Maze Traversal
843 1047 Crypt Kicker
10534 1042 Wavio Sequence
10415 1040 Eb Alto Saxophone Player
377 1039 Cowculations
598 1039 Bundling Newspapers
10043 1036 Chainsaw Massacre
148 1035 Anagram checker
10903 1032 Rock-Paper-Scissors Tournament
126 1032 The Errant Physicist
641 1028 Do the Untwist
10037 1028 Bridge
571 1027 Jugs
10365 1027 Blocks
11000 1027 Bee
711 1023 Dividing up
437 1021 The Tower of Babylon
10878 1020 Decode the tape
10188 1017 Automated Judge Script
302 1017 John's trip
391 1011 Mark-up
186 1008 Trip Routing
10784 1006 Diagonal
10945 1000 Mother bear
542 999 France '98
850 997 Crypt Kicker II
10229 993 Modular Fibonacci
825 993 Walking on the Safe Side
10491 989 Cows and Cars
10005 988 Packing polygons
10341 988 Solve It
10678 986 The Grazing Cow
580 985 Critical Mass
10392 974 Factoring Large Numbers
273 972 Jack Straws
10194 971 Football (aka Soccer)
447 970 Population Explosion
697 965 Jack and Jill
468 964 Key to Success
270 963 Lining Up
10128 963 Queue
526 961 String Distance and Transform Process
10279 961 Mine Sweeper
10016 955 Flip-Flop the Squarelotron
301 953 Transportation
435 948 Block Voting
10054 947 The Necklace
10935 939 Throwing cards away I
187 938 Transaction Processing
10141 937 Request for Proposal
10012 928 How Big Is It?
10364 928 Square
10673 928 Play with Floor and Ceil
260 925 Il Gioco dell'X
501 925 Black Box
10304 922 Optimal Binary Search Tree
10303 918 How Many Trees?
457 918 Linear Cellular Automata
10810 907 Ultra-QuickSort
10359 904 Tiling
551 899 Nesting a Bunch of Brackets
704 897 Colour Hash
10422 895 Knights in FEN
10490 890 Mr. Azad and his Son!!!!!
131 889 The Psychic Poker Player
10745 882 Dominant Strings
177 880 Paper Folding
220 878 Othello
466 875 Mirror, Mirror
10293 873 Word Length and Frequency
10719 871 Quotient Polynomial
10281 868 Average Speed
540 864 Team Queue
10078 862 The Art Gallery
763 861 Fibinary Numbers
397 861 Equation Elation
895 860 Word Problem
620 858 Cellular Structure
10680 848 LCM
10369 845 Arctic Network
10147 843 Highways
10040 843 Ouroboros Snake
10051 841 Tower of Cubes
10057 840 A mid-summer night's dream.
10905 839 Children's Game
626 839 Ecosystem
307 830 Sticks
10482 825 The Candyman Can
143 821 Orchard Trees
10763 820 Foreign Exchange
188 820 Perfect Hash
184 816 Laser Lines
10126 815 Zipf's Law
657 815 The die is cast
132 814 Bumpy Objects
254 814 Towers of Hanoi
10330 811 Power Transmission
10948 809 The primary problem
10115 807 Automatic Editing
10820 807 Send a Table
208 805 Firetruck
10290 803 {Sum+=i++} to Reach N
651 802 Deck
218 801 Moth Eradication
10600 800 ACM Contest and Blackout
821 799 Page Hopping
10301 799 Rings and Glue
10283 798 The Kissing Circles
375 794 Inscribed Circles and Isosceles Triangles
213 794 Message Decoding
10500 792 Robot maps
196 791 Spreadsheet
10088 791 Trees on My Island
10803 789 Thunder Mountain
10344 789 23 out of 5
10022 788 Delta-wave
10589 788 Area
523 785 Minimum Transport Cost
10199 785 Tourist Guide
394 783 Mapmaker
10081 783 Tight Words
481 782 What Goes Up
10363 777 Tic Tac Toe
10268 776 498-bis
362 773 18,000 Seconds Remaining
11005 771 Cheapest Base
668 770 Parliament
10620 770 A Flea on a Chessboard
10494 767 If We Were a Child Again
654 764 Ratio
10496 761 Collecting Beepers
737 759 Gleaming the Cubes
142 759 Mouse Clicks
10706 758 Number Sequence
589 755 Pushing Boxes
10523 755 Very Easy !!!
10249 754 The Grand Dinner
10664 753 Luggage
10954 753 Add All
638 746 Finding Rectangles
10957 742 So Doku Checker
183 740 Bit Maps
741 739 Burrows Wheeler Decoder
796 739 Critical Links
812 738 Trade on Verweggistan
10730 738 Antiarithmetic?
677 738 All Walks of length ``n'' from the first node
10790 737 How Many Points of Intersection?
714 735 Copying Books
418 730 Molecules
726 729 Decode
209 729 Triangular Vertices
10326 715 The Polynomial Equation
331 715 Mapping the Swaps
10653 715 Bombs! NO they are Mines!!
10112 710 Myacm Triangles
10197 710 Learning Portuguese
10596 707 Morning Walk
10315 705 Poker Hands
135 705 No Rectangles
10852 704 Less Prime
10201 704 Adventures in Moving - Part IV
10679 703 I Love Strings!!
10375 700 Choose and divide
565 698 Pizza Anyone?
467 695 Synching Signals
756 695 Biorhythms
665 694 False coin
833 693 Water Falls
10001 689 Garden of Eden
614 688 Mapping the Route
10154 687 Weights and Measures
10213 687 How Many Pieces of Land ?
10374 687 Election
137 686 Polygons
10177 685 (2/3/4)-D Sqr/Rects/Cubes/Boxes?
10132 682 File Fragmentation
652 681 Eight
139 677 Telephone Tangles
584 677 Bowling
776 677 Monkeys in a Regular Forest
165 675 Stamps
162 675 Beggar My Neighbour
327 674 Evaluating Simple C Expressions
321 671 The New Villa
10150 670 Doublets
670 668 The dog task
10393 668 The One-Handed Typist
318 665 Domino Effect
590 662 Always on the run
314 659 Robot
535 658 Globetrotter
688 657 Mobile Phone Coverage
10368 655 Euclid's Game
556 652 Amazing
703 652 Triple Ties: The Organizer's Nightmare
601 651 The PATH
10202 650 Pairsumonious Numbers
134 649 Loglan-A Logical Language
255 649 Correct Move
545 647 Heads
434 646 Matty's Blocks
10518 645 How Many Calls?
855 641 Lunch in Grid City
245 641 Uncompress
10705 638 The Fun Number System
10287 637 Gifts in a Hexagonal Box
10061 637 How many zero's and how many digits ?
10919 635 Prerequisites?
10354 634 Avoiding Your Boss
10504 634 Hidden squares
10259 634 Hippity Hopscotch
10519 633 !! Really Strange !!
10065 633 Useless Tile Packers
10943 633 How do you add?
10391 631 Compound Words
533 629 Equation Solver
339 627 SameGame Simulation
10780 626 Again Prime? No Time.
379 626 Hi-Q
10849 625 Move the bishop
815 620 Flooded!
617 620 Nonstop Travel
10916 619 Factstone Benchmark
462 618 Bridge Hand Evaluator
10689 618 Yet another Number Sequence
538 617 Balancing Bank Accounts
632 617 Compression (II)
550 616 Multiplying by Rotation
10510 612 Cactus
547 612 DDF
10371 611 Time Zones
290 609 Palindroms <---> smordnilaP
493 607 Rational Spiral
10307 607 Killing Aliens in Borg Maze
743 607 The MTM Machine
10551 606 Basic Remains
634 606 Polygon
10693 605 Traffic Volume
10683 604 The decadary watch
10356 603 Rough Roads
11040 603 Add bricks in the wall
607 601 Scheduling Lectures
10165 600 Stone Game
10090 600 Marbles
10566 595 Crossed Ladders
10029 594 Edit Step Ladders
10928 594 My Dear Neighbours
603 593 Parking Lot
10261 593 Ferry Loading
616 591 Coconuts, Revisited
604 591 The Boggle Game
10446 591 The Marriage Interview :-)
10880 590 Colin and Ryan
10739 589 String to Palindrome
10306 588 e-Coins
10507 587 Waking up brain
627 585 The Net
672 583 Gangsters
10092 581 The Problem with the Problem Setter
10227 581 Forests
548 577 Tree
222 577 Budget Travel
449 577 Majoring in Scales
10593 577 Kites
10871 577 Anti-Primes
10337 574 Flight Planner
10947 573 Bear with me, again..
381 572 Making the Grade
554 572 Caesar Cypher
10246 571 Asterix and Obelix
10813 569 Traditional BINGO
221 569 Urban Elevations
10930 566 A-Sequence
10389 565 Subway
347 564 Run, Run, Runaround Numbers
705 564 Slash Maze
10650 563 Determinate Prime
10039 561 Railroads
416 561 LED Test
10493 559 Cats, with or without Hats
10171 558 Meeting Prof. Miguel...
10879 558 Code Refactoring
10651 558 Pebble Solitaire
10574 556 Counting Rectangles
732 555 Anagrams by Stack
10602 554 Editor Nottobad
451 553 Poker Solitaire Evaluator
11039 552 Building designing
10484 551 Divisibility of Factors
10926 550 How Many Dependencies?
10637 549 Coprimes
10976 546 Fractions Again?!
10308 546 Roads in the North
10667 544 Largest Block
276 544 Egyptian Multiplication
10309 541 Turn the Lights Off
242 541 Stamps and Envelope Size
586 540 Instant Complexity
10528 539 Major Scales
837 538 Light and Transparencies
10254 537 The Priest Mathematician
892 535 Finding words
10536 534 Game of Euler
10910 533 Marks Distribution
10791 532 Minimum Sum LCM
10856 532 Recover Factorial
10164 530 Number Game
10617 528 Again Palindrome
10210 527 Romeo and Juliet !
10497 526 Sweet Child Makes Trouble
464 525 Sentence/Phrase Generator
10801 523 Lift Hopping
529 522 Addition Chains
10908 521 Largest Square
10047 520 The Monocycle
10313 520 Pay the Price
10419 519 Sum-up the Primes
10296 519 Jogging Trails
671 519 Spell checker
10527 518 Persistent Numbers
10669 517 Three powers
410 516 Station Balance
380 514 Call Forwarding
517 512 Word
487 511 Boggle Blitz
710 510 The Game
10918 510 Tri Tiling
622 509 Grammar Evaluation
10894 507 Save Hridoy
10325 506 The Lottery
782 504 Contour Painting
10120 503 Gift?!
588 502 Video Surveillance
338 502 Long Multiplication
10460 500 Find the Permuted String
707 499 Robbery
735 495 Dart-a-Mania
312 495 Crosswords (II)
869 494 Airline Comparison
10774 494 Repeated Josephus
10625 493 GNU = GNU'sNotUnix
10278 492 Fire Station
10060 489 A hole to catch a man
10146 489 Dictionary
721 489 Invitation Cards
10717 486 Mint
10541 484 Stripe
10466 482 How Far?
10212 482 The Last Non-zero Digit.
10920 482 Spiral Tap
10773 480 Back to Intermediate Math
426 479 Fifth Bank of Swamp County
296 479 Safebreaker
11057 478 Exact Sum
10503 478 The dominoes solitaire
718 477 Skyscraper Floors
658 475 It's not a Bug, it's a Feature!
880 474 Cantor Fractions
10925 474 Krakovia
313 472 Intervals
10946 472 You want what filled?
10160 470 Servicing Stations
10097 470 The Color Game
10453 469 Make Palindrome
11044 468 Searching for Nessy
403 467 Postscript
656 465 Optimal Programs
10721 465 Bar Codes
10610 464 Gopher and Hawks
10178 464 Count the Faces.
334 463 Identifying Concurrent Events
647 461 Chutes and Ladders
10865 460 Brownie Points
10586 460 Polynomial Remains
10401 459 Injured Queen Problem
520 459 Append
395 456 Board Silly
10742 453 The New Rule in Euphomia
10233 451 Dermuba Triangle
11015 451 05-2 Rendezvous
157 451 Route Finding
150 448 Double Time
10522 448 Height to Area
10236 446 The Fibonacci Primes
10543 445 Traveling Politician
10603 444 Fill
10289 443 A Square and Equilateral Triangles
753 443 A Plug for UNIX
10646 443 What is the Card?
268 443 Double Trouble
719 441 Glass Beads
851 441 Maze
172 438 Calculator Language
10576 438 Y2K Accounting Bug
10895 438 Matrix Transpose
10333 438 The Tower of ASCII
759 437 The Return of the Roman Empire
10585 437 Center of symmetry
10771 435 Barbarian tribes
10816 434 Travel in Desert
158 433 Calendar
10428 433 The Roots
10959 432 The Party, Part I
10075 431 Airlines
211 429 The Domino Effect
175 429 Keywords
557 429 Burger
10158 428 War
10677 426 Base Equality
10830 425 A New Function
274 424 Cat and Mouse
393 424 The Doors
373 424 Romulan Spelling
10578 423 The Game of 31
10741 423 Magic Cube
10554 422 Calories from Fat
415 421 Sunrise
10912 421 Simple Minded Hashing
10616 420 Divisible Group Sums
10174 417 Couple-Bachelor-Spinster Numbers.
698 416 Index
10806 415 Dijkstra, Dijkstra.
10203 415 Snow Clearing
10312 413 Expression Bracketing
10776 413 Determine The Combination
10718 411 Bit Mask
345 410 It's Ir-Resist-Able!
10094 410 Place the Guards
10410 407 Tree Reconstruction
385 407 DNA Translation
10045 405 Echo
10892 404 LCM Cardinality
702 403 The Vindictive Coach
10911 403 Forming Quiz Teams
387 402 A Puzzling Problem
10827 402 Maximum sum on a torus
10382 402 Watering Grass
10635 402 Prince and Princess
10440 402 Ferry Loading II
181 402 Hearts
10986 401 Sending email
10821 399 Constructing BST
11055 399 Homogeneous squares
10720 399 Graph Construction
10896 399 Known Plaintext Attack
11059 398 Maximum Product
11063 395 B2-Sequence
10024 394 Curling up the cube
10662 392 The Wedding
341 391 Non-Stop Travel
11026 391 A Grouping Problem
736 388 Lost in Space
810 387 A Dicey Problem
179 387 Code Breaking
10672 387 Marbles on a tree
427 386 FlatLand Piano Movers
10350 385 Liftless EME
349 384 Transferable Voting (II)
10575 383 Polylops
10891 382 Game of Sum
425 382 Enigmatic Encryption
399 382 Another Puzzling Problem
10958 381 How Many Solutions?
10823 380 Of Circles and Squares
10804 378 Gopher Strategy
10567 377 Helping Fill Bates
10284 376 Chessboard in FEN
760 376 DNA Sequencing
865 375 Substitution Cypher
10113 375 Exchange Rates
178 375 Shuffling Patience
308 375 Tin Cutter
358 372 Don't Have A Cow, Dude
10234 372 Frequent Substrings
10532 371 Combination! Once Again
662 371 Fast Food
10520 370 Determine it
10023 368 Square root
10250 367 The Other Two Trees
10564 367 Paths through the Hourglass
10387 367 Billiard
10944 367 Nuts for nuts..
10477 366 The Hybrid Knight
10902 366 Pick-up Sticks
432 366 Modern Art
10264 365 The Most Potent Corner
645 364 File Mapping
452 364 Project Scheduling
10173 363 Smallest Bounding Rectangle
663 363 Sorting Slides
10670 362 Work Reduction
10149 362 Yahtzee
390 362 Letter Sequence Analysis
10157 360 Expressions
10109 360 Solving Systems of Linear Equations
10557 359 XYZZY
10842 358 Traffic Flow
10433 358 Automorphic Numbers
10328 357 Coin Toss
10862 356 Connect the Cable Wires
897 356 Anagrammatic Primes
10994 355 Simple Addition
10378 355 Complex Numbers
388 354 Galactic Import
149 354 Forests
758 352 The Same Game
609 352 Metal Cutting
10626 352 Buying Coke
398 351 18-Wheeler Caravans (aka Semigroups)
10248 350 The Integer All-time Champ
613 350 Numbers That Count
10559 350 Blocks
10228 347 Star not a Tree?
10111 347 Find the Winning Move
10217 345 A Dinner with Schwarzenegger!!!
180 345 Eeny Meeny
10685 345 Nature
10396 344 Vampire Numbers
173 344 Network Wars
10663 344 Non-Powerful Subsets
10569 344 Number Theory
10973 343 Triangle Counting
10449 343 Traffic
10688 342 The Poor Giant
10317 342 Equating Equations
633 342 A Chess Knight
10232 341 Bit-wise Sequence
10167 341 Birthday Cake
10690 340 Expression Again
871 337 Counting Cells in a Blob
10416 337 Folding My T-Shirt
10681 337 Teobaldo's Trip
10083 337 Division
257 333 Palinwords
11001 333 Necklace
405 332 Message Routing
521 331 Gossiping
10406 330 Cutting tabletops
752 330 Unscrambling Images
10978 329 Let's Play Magic!
10744 329 The Optimal Super-Highway
10535 329 Shooter
745 327 Numeric Puzzles Again!
10148 327 Advertisement
518 326 Time
171 326 Car Trialling
811 326 The Fortified Forest
430 324 Swamp County Supervisors
10890 324 Maze
10256 324 The Great Divide
11054 324 Wine trading in Gergovia
10604 323 Chemical Reaction
169 323 Xenosemantics
11012 322 Cosmic Cabbages
11056 322 Formula 1
10480 321 Sabotage
10068 321 The Treasure Hunt
10787 320 Modular Equations
10439 320 Temple of Dune
10851 319 2D Hieroglyphs decoder
10716 319 Evil Straw Warts Live
10058 319 Jimmi's Riddles
10506 319 The Ouroboros problem
10898 319 Combo Deal
185 318 Roman Numerals
258 317 Mirror Maze
428 317 Swamp County Roofs
10436 316 Cheapest way
10505 315 Montesco vs Capuleto
592 315 Island of Logic
215 313 Spreadsheet Calculator
787 313 Maximum Sub-sequence Product
10351 313 Cutting Diamonds
10459 312 The Tree Root
267 312 Of(f) Course!
10819 311 Trouble of 13-Dots
10517 311 Wind of Change!
10134 310 AutoFish
10385 310 Duathlon
453 308 Intersecting Circles
10722 307 Super Lucky Numbers
10316 307 Airline Hub
10555 307 Dead Fraction
10421 307 Critical Wave
10666 307 The Eurocup is Here!
695 306 Placing the Ops
10668 306 Expanding Rods
10634 304 Say NO to Memorization
684 304 Integral Determinant
10792 303 The Laurel-Hardy Story
10257 302 Dick and Jane
570 302 Stats
10914 302 Abundance and Perfect Numbers
10342 302 Always Late
10710 302 Chinese Shuffle
11067 301 Little Red Riding Hood
625 300 Compression
10331 300 The Flyover Construction
10785 300 The Mad Numerologist
10085 299 The most distant state
10238 299 Throw the Dice
11064 299 Number Theory
10243 298 Fire! Fire!! Fire!!!
563 298 Crimewave
10933 297 Volleyball
500 297 Table
10255 296 The knight's Tour
10606 295 Opening Doors
561 295 Jackpot
10917 293 Walk Through the Forest
10855 293 Rotated square
845 292 Gas Station Numbers
824 292 Coast Tracker
10746 292 Crime Wave - The Sequel
298 291 Race Tracks
10483 291 The Sum Equals the Product
814 291 The Letter Carrier's Rounds
10263 290 Railway
10547 290 Hidden Truth in Recurrence
10386 290 Circles in Triangle
11069 290 A Graph Problem
10318 289 Security Panel
10802 288 Lex Smallest Drive
346 288 Getting Chorded
10609 288 Fractal
10874 287 Segments
519 287 Puzzle (II)
182 287 Bonus Bonds
10814 287 Simplifying Fractions
433 286 Bank (Not Quite O.C.R.)
10537 286 The Toll! Revisited
10733 285 The Colored Cubes
11002 285 Towards Zero
10352 285 Count the eWords
10086 284 Test the Rods
10540 284 Flowers of a Beautiful Mind
10214 283 Trees in a Wood.
10136 283 Chocolate Chip Cookies
11003 282 Boxes
10909 282 Lucky Number
10339 281 Watching Watches
10277 280 Boastin' Red Socks
10750 280 Beautiful Points
10475 280 Help the Leaders
10269 280 Adventure of Super Mario
10698 279 Football Sort
610 279 Street Directions
10021 278 Cube in the labirint
11008 278 Antimatter Ray Clearcutting
512 278 Spreadsheet Tracking
174 278 Strategy
10999 278 Crabbles
407 277 Gears on a Board
10288 276 Coupons
10320 276 Cow Trouble! Help Please!!
10991 275 Region
10218 275 Let's Dance !!!
10655 274 Contemplation - Algebra
10373 274 The Brick Stops Here
11032 274 Function Overloading
303 274 Pipe
198 273 Peter's Calculator
10938 273 Flea circus
330 271 Inventory Maintenance
669 271 Defragment
10793 271 The Orc Attack
10180 270 Rope Crisis in Ropeland!
858 269 Berry Picking
11053 269 Flavius Josephus Reloaded
230 269 Borrowers
11062 269 Andy's Second Dictionary
11029 269 Leading and Trailing
757 268 Gone Fishing
505 268 Moscow time
10495 268 Conic Distance
10977 268 Enchanted Forest
10570 268 Meeting with Aliens
10426 267 Knights' Nightmare
10349 267 Antenna Placement
10964 267 Strange Planet
783 267 Trains
716 266 Commedia dell' arte
10089 266 Repackaging
866 265 Intersecting Line Segments
11042 265 Complex, difficult and complicated
10759 265 Dice Throwing
11058 264 Encoding
653 263 Gizilch
10118 263 Free Candies
10549 263 Russian Dolls
10901 262 Ferry Loading III
10587 262 Mayor's posters
10425 261 Mobile Destroyer
361 261 Cops and Robbers
11045 261 My T-shirt suits me
411 261 Centipede Collisions
10027 260 Language Cardinality
11068 260 An Easy Task
10956 259 Prime Suspect
10529 259 Dumb Bones
10441 259 Catenyms
10329 258 Combinatorial Expression
856 257 The Vigenère Cipher
10889 256 The Lost Gift
10942 256 Can of Beans
11022 256 String Factoring
742 255 Domino Game
10715 254 Cat
765 254 References
10512 253 A Day in Math-land
10562 252 Undraw the Trees
10992 251 The Ghost of Programmers
838 250 Worm World
10280 250 Old Wine Into New Bottles
10545 249 Maximal Quadrilateral
10560 249 Minimum Weight
247 249 Calling Circles
10740 248 Not the Best
194 247 Triangle
192 246 Synchronous Design
10915 246 War on Weather
366 245 Cutting Up
599 245 The Forrest for the Trees
629 245 Test
10239 243 The Book-shelver's Problem
10237 243 Bishops
10660 243 Citizen attention offices
10769 243 Pillars
10444 243 Multi-peg Towers of Hanoi
309 242 FORCAL
10457 242 Magic Car
10525 242 New to Bangladesh?
10357 242 Playball !!!
747 241 Grid Soccer
335 241 Processing MX Records
10343 240 Base64 Decoding
10275 239 Guess the Number!
852 239 Deciding victory in Go
10927 238 Bright Lights
11048 238 Automatic Correction of Misspellings
10423 237 Peter Takes a Tramway
10390 236 Bean Counting
10274 236 Fans and Gems
10807 236 Prim, Prim.
10932 236 Calculator
560 236 Magic
10860 236 Many a Little makes a Mickle
10577 236 Bounding box
10887 235 Concatenation of Languages
10937 234 Blackbeard the Pirate
552 234 Filling the Gaps
10731 234 Test
618 233 Doing Windows
10854 233 Number of Paths
650 233 Bowl
10225 232 Discrete Logging
10445 232 Make Polygon
10831 232 Gerg's Cake
10980 232 Lowest Price in Town
10694 232 Combinatorial Summation
10144 231 Expression
10247 230 Complete Tree Labeling
835 230 Square of Primes
685 230 Least Path Cost
10413 229 Crazy Savages
10563 229 Least Squares
261 228 The Window Property
10073 228 Constrained Exchange Sort
11060 228 Beverages
10072 227 Bob Laptop Woolmer and Eddie Desktop Barlow
10777 227 God! Save me
10592 226 Freedom Fighter
10461 226 Difference
10208 226 Liar or Not Liar that is the...
559 225 Squares (II)
10156 225 Sala-ma-Sond, A Nice Little Pond
10843 225 Anne's game
10748 224 Knights Roaming
10950 224 Bad Code
10471 224 Can't be too GREEDY
10462 223 Is There A Second Way Left?
10138 223 CDVII
10028 222 Demerit Points
10479 222 The Hendrie Sequence
10619 222 Advanced Causal Measurements
659 221 Reflections
10384 221 The Wall Pushers
10244 220 First Love !!!
10963 220 The Swallowing Ground
10175 220 Sphere
10990 220 Another New Function
10713 220 Map
323 219 Jury Compromise
10598 219 Find the Latitude
10366 217 Faucet Flow
10454 217 Trexpression
10761 216 Broken Keyboard
10381 214 The Rock
10319 213 Manhattan
11038 212 How Many O's?
10709 212 Intersection is Not that Easy
731 212 Numerical Summation of a Series
10544 211 Numbering the Paths
799 211 Safari Holiday
10464 211 Big Big Real Numbers
10488 211 Swimming Gopher
10870 211 Recurrences
10169 210 Urn-ball Probabilities !
10900 210 So you want to be a 2n-aire?
11027 210 Palindromic Permutation
10262 210 Suffidromes
10648 209 Chocolate Box
199 209 Partial differential equations
197 209 Cube
10822 208 Planet of the Rock, Paper and Scissors
10123 206 No Tipping
10516 206 Another Counting Problem
10511 206 Councilling
10805 206 Cockroach Escape Networks
10734 206 Triangle Partitioning
595 205 A Major Problem
10207 205 The Unreal Tournament
10877 204 Diceoids
10514 204 River Crossing
708 204 Dreisam Equations
10732 204 The Strange Research
10858 204 Unique Factorization
10687 203 Monitoring the Amazon
10897 203 Travelling Distance
10624 203 Super Number
828 201 Deciphering Messages
751 201 Triangle War
10556 200 Biometrics
10883 200 Supermean
10345 199 Cricket/Football Goes Down
10844 198 Bloques
10553 198 Treasure Map
10590 198 Boxes of Chocolates Again
10114 197 Loansome Car Buyer
10091 197 The Valentine's Day
11021 197 Tribles
10463 197 Aztec Knights
593 197 MBone
676 197 Horse Step Maze
766 197 Sum of powers
10934 196 Dropping water balloons
10913 196 Walking on a Grid
10594 196 Data Flow
10448 196 Unique World
635 195 Clock solitaire
250 195 Pattern Matching Prelims
10230 194 Savage Garden
527 194 The partition of a cake
10893 194 Creating Sudoku Puzzles
10728 193 Help!
10291 193 Cut the Legs
10273 193 Eat or Not to Eat?
10468 193 Rigid Circle Packing
10782 193 Send More Money
10348 192 Submarines
10623 192 Thinking Backward
10875 191 Big Math
10998 191 Flipping Colors
10011 190 Where Can You Hide?
10076 190 The Bumpy Robot
10866 190 Magic Bitstrings
10542 189 Hyper-drive
10398 189 The Golden Pentagon
376 188 More Triangles ... THE AMBIGUOUS CASE
11070 188 The Good Old Times
10631 188 Normals
10868 187 Bungee Jumping
10725 187 Triangular Square
10418 186 Hyper Toy Soldiers
10122 186 Mysterious Mountain
10481 185 The Gift Wrappers of Hollywood
10417 185 Gift Exchanging
893 185 Y3K Problem
10548 185 Find the Right Changes
10872 184 Triangles
10649 184 Danger Point
515 184 King
11034 184 Ferry Loading IV
10231 183 Matrix World
328 182 The Finite State Text Processing Machine
10581 182 Partitioning for fun and profit
10367 181 Equations
10430 180 Dear GOD, Pardon Me
10659 180 Fitting Text into Slides
10765 180 Doves and bombs
11049 179 Basic wall maze
10923 179 Seven Seas
431 179 Trial of the Millennium
259 179 Software Allocation
11004 179 Changing Roadmap
419 177 Matching Meetings
10552 177 Genealogical Research
288 177 Arithmetic Operations With Large Integers
10848 177 Make Palindrome Checker
10442 177 Basic
566 176 Adam's Genes
830 176 Shark
10412 176 Big Big Trees
10989 176 Bomb, Divide and Conquer
10724 176 Road Construction
229 175 Scanner
10888 175 Warehouse
10145 175 Lock Manager
872 175 Ordering
643 175 Bulk Mailing
754 174 Treasure Hunt
10355 174 Superman
648 174 Stamps (II)
680 173 Movement of Reading Head
775 172 Hamiltonian Cycle
10582 172 ASCII Labyrinth
10597 172 Right Words
10987 171 Antifloyd
10658 171 ReArrange
10832 170 Yoyodyne
10882 170 Koerner's Pub
11036 169 Eventually Periodic Sequence
10644 167 Floor Tiles
10824 166 Regular Polygon
682 166 Whoever-pick-the-last-one-lose
10697 166 Firemen barracks
240 165 Variable Radix Huffman Encoding
10486 165 Mountain Village
10568 165 n Group k
10388 164 Snap
10372 163 Leaps Tall Buildings (in a single bound)
11011 163 Numerical Methods! A Satire
189 162 Pascal Program Lengths
10817 162 Headmaster's Headache
10707 161 2D-Nim
10621 160 Jack and Jill
10599 160 Robots(II)
176 159 City Navigation
600 159 A Duckpin Tournament
10982 159 Troublemakers
10652 159 Board Wrapping
795 158 Sandorf's Cipher
10524 158 Matrix Reloaded
10735 158 Euler Circuit
226 158 MIDI Preprocessing
10692 158 Huge Mods
10643 157 Facing Problem With Trees
10561 157 Treblecross
709 157 Formatting Text
831 156 Document Validator
10835 156 Playing with Coins
10211 155 Divisibility Testing! Wow!
10353 155 Circles in Hexagon :-)
10799 155 OOPS! They did it Again...
239 155 Tempus et mobilius. Time and motion
734 155 The Programmer's Hex
606 154 Keeps Going and Going and ...
11072 154 Points
767 154 Game
10052 153 Inviting Politicians
660 153 Going in circles on Alpha Centauri
860 153 Entropy Text Analyzer
10186 152 Euro Cup 2000
10376 152 Snakes
10686 152 SQF Problems
10251 151 Min-Max Cake
310 151 L--system
10571 151 Products
163 150 City Directions
10627 150 Infinite Race
806 150 Spatial Structures
10053 150 Envelopes
10811 149 Up the Ante
10084 148 Hotter Colder
10117 148 Nice Milk
10850 147 The Gossipy Gossipers Gossip Gossips
10708 147 Cheetah
10476 147 Spam or Not Spam
10335 147 Ray Inside a Polygon
10838 146 The Pawn Chess
11051 146 Dihedral groups
844 145 Pousse
11024 144 Circular Lock
11047 144 The Scrooge Co Problem
10615 143 Rooks
10601 143 Cubes
10825 142 Anagram and Multiplication
10163 142 Storage Keepers
10294 142 Arif in Dhaka (First Love Part 2)
251 141 Nondeterministic Trellis Automata
10124 140 Subway
10558 140 A Brief Gerrymander
10772 139 Rose windows
10747 139 Maximum Subsequence
10595 139 Knight on the Bee Board
553 138 Simply proportion
10665 138 Diatribe against Pigeonholes
10818 137 Dora Trip
841 137 Snake
857 137 Quantiser
11046 137 Numbers and operations
10654 137 The Uxuhul Voting System
10764 137 Signed-digit numbers
667 136 Fence
502 136 DEL command
10172 135 The Lonesome Cargo Distributor
10755 134 Garbage Heap
277 133 Cabinets
10723 133 Cyborg Genes
10661 133 The Perspectographer
11028 133 Sum of Product
319 132 Pendulum
404 132 Radar Scopes
10798 132 Be wary of Roses
10645 131 Menu
10726 131 Coco Monkey
10399 131 Optimus Prime
10949 131 Kids in a Grid
10754 131 Fantastic Sequence
10736 131 Series of PI
10985 130 Rings'n'Ropes
10993 129 Ignoring Digits
11031 128 Looking for a Subset
10984 128 Double NP-hard
10380 128 Shogi Tournament
577 128 WIMP
10253 128 Series-Parallel Networks
10647 127 Optimal House Placement
10321 127 Polygon Intersection
10184 126 Equidistance
10682 126 Forró Party
10953 125 Stochastic Digit Generator
10265 125 Toroidal Chess Queens' Problem
10458 125 Cricket Ranking
10501 125 Simplified Shisen-Sho
10546 125 The Eagle's Nest
396 124 Top Dog
10332 124 The Absent Minded Professor
738 124 A Logical Problem
11020 123 Efficient Solutions
664 123 Single-Player Games
840 121 Deadlock Detection
10166 121 Travel
10618 120 Tango Tango Insurrection
870 119 Intersecting Rectangles
882 119 The Mailbox Manufacturers Problem
10185 119 Phylogenetic Trees Inherited
11019 118 Matrix Matcher
10837 117 A Research Problem
10704 117 Traffic!
10447 116 Sum-up the Primes (II)
790 116 Head Judge Headache
874 116 2D Representations
10292 115 The Gossiping System
10788 115 Parenthesizing Palindromes
11073 115 Euler's Totient Function
744 115 Triangular Museum
210 114 Concurrency Simulator
899 114 Colour Circles
10983 113 Buy one, get the rest free
10498 113 Happiness
11014 113 Make a Crystal
420 112 Supercomputer Selection, The Sequel
506 112 System Dependencies
10886 112 Standard Deviation
715 111 Substitution Cipher
10270 110 Bigger Square Please...
503 110 Parallelepiped walk
878 110 Rotating Tetris Pieces
10526 109 Intellectual Property
816 109 Abbott's Revenge
817 108 According to Bartjens
10751 107 Chessboard
10695 107 Find the Point
10881 107 Piotr's Ants
10095 106 Saving the Planet
10794 106 The Deadly Olympic Returns!!!
10431 105 Normal Distribution
10362 105 Trains
10358 105 Matrix
722 104 Lakes
10941 104 Words adjustment
11035 104 Card Hands
10839 104 The Curse of Barbosa
317 103 Hexagon
832 103 Financial Risk
10434 103 Working With Specific Gravity
10521 102 Continuously Growing Fractions
10826 102 Hot or Cold?
286 102 Dead Or Not -- That Is The Question
10981 102 String Morphing
283 102 Compress
10087 102 The Tajmahal of ++Y2k
848 102 Fmt
10607 101 Siege
10240 100 The n-Dimensional Cities
10437 100 Playing With Fraction
206 100 Meals on Wheels Routing System
10395 100 Titans in Danger
10906 100 Strange Integration
10030 100 Computer Dialogue
10795 99 A Different Task
689 98 Napoleon's Grumble
10727 98 Practice
10538 98 Powerful Magic Squares
10613 97 Mushroom Misery
316 97 Stars
764 97 Pentominos
10904 97 Structural Equivalence
10403 96 Escape from Tut's Tomb
10836 96 The Maximum Term
10133 94 Audubon's Stormy Arctic Trip
10456 94 Intelligent Cats
10614 94 Dreadful Vectors
238 94 Jill's Bike
10155 94 Green Eggs and Ham
10206 93 Stars
10513 93 Bangladesh Sequences
491 93 Tile Topology
10968 93 KuPellaKeS
11013 93 Get Straight
690 93 Pipeline Scheduling
733 92 Follow the Folding Dot
692 92 BUT We Need a Diagram
11043 92 Fast and Easy Data Compressor
10768 91 Planarity
421 91 Polygonal Puzzle
10797 91 Peaceful Sharing
367 90 Halting Factor Replacement Systems
10743 89 Blocks on Blocks
842 89 Crossword Puzzles
365 89 Welfare Reform
829 89 Almost Balanced Trees
10216 88 The Optimal Coffee Shop!!
214 88 Code Generation
10640 88 Planes around the World
10580 87 Ransom Note
611 87 Parallel Deadlock
10531 87 Maze Statistics
10775 86 Mystical Matrix
10472 86 Fastest Vs Cheapest
10674 86 Tangents
802 86 Lead or Gold
10936 86 Land surveyor's job
11061 86 Playing War
883 86 Overlapping Rectangles
10841 85 Lift Hopping in the Real World
504 85 Random number
859 85 Chinese Checkers
10411 84 Another Game of Tetris
11033 84 Help my Brother
10997 83 Medals
11010 83 Tic-Tac-Tough
10939 83 Ants, Aphids and a Ladybug
10766 83 Organising the Organisation
10767 83 Barcelona's trams
655 82 Scrabble
10224 82 Return of the Jedi
10159 82 Star
10438 81 Meta Editor
10979 80 How Many Triangles?
10379 80 Pit Stop Strategy
10873 79 Splat, Inc.
10828 79 Back to Kernighan-Ritchie
10711 78 Stitching
631 78 Microzoft Calendar
269 78 Counting Patterns
10876 78 Factory Robot
10467 77 Parse Tree
678 76 Schedule of Taiwan Baseball League
10962 76 Don Giovanni's Last Dinner
10760 76 Translation or rotation
10470 76 Shifted Coefficient Number System
10853 76 Pablito nailed a nail
10869 76 Brownie Points II
10455 75 Gray Code
873 75 Loan (II)
10796 75 Right Hand Rule
10729 74 Treequivalence
898 74 Hole Cutter
10899 74 Billiard again
10770 73 Sokoban
826 73 Symbolic Numerical System
10829 73 L-Gap Substrings
10786 72 Qualify for the Champions League
11007 72 Mini Cube
818 72 Cutting Chains
266 70 Stamping Out Stamps
10429 70 Mohr's Circle
853 70 DVD Subtitles
10951 69 Polynomial GCD
10834 69 The Story of Two Coins
10135 69 Herding Frosh
10975 69 Dueue's Quiz
10322 69 The Four in One Stadium
10632 69 Pyramid
10960 69 The Party, Part II
578 69 Polygon Puzzler
10712 68 Count the Numbers
10272 68 DDR King
564 68 Gaston
11052 67 Economic phone calls
728 67 Scatter Point Plot
10995 67 Educational Journey
11025 66 Mr. And Mrs. Hamilton
10859 66 Placing Lampposts
10314 66 Three Pigs
10753 66 Exponential Function
10965 66 Khepel's Problem
10204 66 Adventures in Moving - Part V
804 66 Petri Net Simulation
10629 66 Truckin'
10572 66 Black & White
10779 66 Collectors Problem
10809 65 Great Circle
10752 65 Distant Jumping
10121 65 Legendary Pokemon
581 65 Word Search Wonder
285 65 Crosswords
10638 65 The Trip II
10641 64 Barisal Stadium
265 63 Dining Diplomats
881 62 Points, Polygons and Containers
10588 62 Queuing at the doctors
10612 62 Paper Folding
10833 60 Lunar Forest
10907 60 Art Gallery
819 60 Gifts Large and Small
10671 60 Grid Speed
10749 60 Automobile Travelling
207 59 PGA Tour Prize Money
246 59 10-20-30
370 58 Bingo
868 58 Numerical Maze
10119 58 Farewell, my friend
10478 57 The Falling Pillars
879 57 Circuit Nets
11071 56 Permutation Representation
827 56 Buddy Memory Allocator
234 56 Switching Channels
11016 55 Square Counting
262 55 Transferable Voting
11018 55 Mars Buggy
473 54 Raucous Rockers
11065 54 A Gentlemen's Agreement
10676 53 Grid Points
10402 53 Triangle Covering
10867 52 Cutting a Polygon
10108 52 The Mosquito Killer Mosquitos
10847 52 Basic Tautologies
342 52 HTML Syntax Checking
243 52 Theseus and the Minotaur (II)
10565 52 Matrix
10885 52 Martin the Gardener
10143 50 Loan
549 50 Evaluating an Equations Board
823 50 Stopper Stumper
683 49 Character Decoding
809 49 Bullet Hole
237 49 Monitoring Wheelchair Patients
359 49 Sex Assignments And Breeding Experiments
569 48 Horse Shoe Scoring
10103 48 Karpovich blocks
877 48 Offset Polygons
10808 47 Rational Resistors
10064 47 Travelling in another Dimension
10996 47 Go
10435 46 Compare Directories
10969 46 Sweet Dream
777 46 Codebreakers
10266 46 Surveying
10605 46 Mines For Diamonds
10241 46 Semi-triangular and also Square
11017 45 A Greener World
10863 45 Shovelling Snow
10864 45 The Predator
10884 45 Persephone
11030 45 Predator II
304 44 Department
10584 43 Text Formalization
225 43 Golygons
822 43 Queue and A
769 43 Magic of David Copperfield
282 43 Rename
203 42 Running Lights Visibility Calculator
205 42 Getting There
10153 41 New Horizons
10967 41 The Great Escape
10031 41 Saskatchewan
329 41 PostScript Emulation
289 41 A Very Nasty Text Formatter
475 40 Wild Thing
10675 40 Revenge of Faucet Flow
10414 40 Denki Blocks
546 40 Image Recognizer
10691 40 Subway
10758 39 Journey
284 38 Logic
10628 38 Quadrills
813 36 Robot
293 36 Bits
10952 35 Pattern Transformations
730 35 Morse Code Generation
204 35 Robot Crash
244 34 Train Time
10756 34 HardNumbers
11006 33 Wheel Good
10737 32 The Difference Engine
11066 31 Aragorn
10961 30 Chasing After Don Giovanni
807 30 Towers of Powers
746 29 Polygon Visibility
891 29 Syntrax
11050 29 Construct the wall maze
666 28 Rating
10151 27 Spaghetti
605 27 The Rotating Disk
890 27 Maze (II)
10955 26 Playfair Cipher
223 25 Classifying Lots in a Subdivision
322 25 Ships
10636 25 Stretching Geometry
279 25 Spin
10657 25 Prince Frog II
687 24 Lattice Practices
10988 24 From G to H and back
10846 24 Reading time from a clock
720 23 Hares and Foxes
10485 23 Painting with CSE
862 23 Origami
10972 23 RevolC FaeLoN
249 22 Bang the Drum Slowly
10096 22 The Richest Man of the Universe
295 21 Fatman
723 21 Comment Removal
11023 21 Multisets and Sequences
11009 21 Geometry Once Again
797 20 Two Way Traffic
691 20 Triangle Partition
798 19 Tile Puzzle
885 19 Telephone Directory Alphabetization
794 19 Straightest Paths
889 18 Islands
864 18 Scheme Pretty-Printing
10046 18 Fold-up Patterns
786 18 Working with Relations
11041 18 Quarter-Finals with Brazil!? No!!!
849 18 Radar Tracking
11037 17 Point of View in Flatland
233 17 Package Pricing
10861 17 Security by Ambiguity
887 17 Revolutionary Calendar
10639 16 Square Puzzle
646 16 The Gourmet Club
854 16 Worse Code
281 16 Rubik's Cube
888 14 Donkey
749 14 Machine Repair Simulation
212 14 Use of Hospital Facilities
886 14 Named Extension Dialing
693 14 Digital Racing Circuit
10762 14 Treasure Castle
10857 14 Easter Eggs
235 13 Typesetting
10492 13 Optimal Mastermind Strategy
463 13 Polynomial Factorization
241 12 Sail Race
10778 11 Mathemagicland
248 11 Cutting Corners
10383 10 Queen vs Rook
801 10 Flight Planning
292 9 Presentation Error
10630 9 Millennium Ceremony
217 9 Radio Direction Finder
525 8 Milk Bottle Data
894 6 Juggling Trams
354 5 Crazy Calculator
10974 4 The Ridiculous Game
10971 4 Building Construction
10059 3 The Hazard of CSE Department!
10757 2 Interpreting SQL
10840 1 Multi-stage Compressor
10966 1 3KP-BASH Project
896 1 Board Game
236 1 VTAS - Vessel Traffic Advisory Service
10781 0 Global Positioning System
10845 0 The crusades
863 0 Process Scheduling
219 0 Department of Redundancy Department
224 0 Kissin' Cousins
228 0 Resource Allocation
252 0 Trucking
287 0 Text Comparsion
351 0 ``Cheapest'' Scores
360 0 Don't Get Hives From This One!
363 0 Approximate Matches
364 0 Constitutional Computing
368 0 Indexing Web Pages
372 0 WhatFix Notation
456 0 Robotic Stacker
461 0 The Reservation Maker
470 0 Nasty Virus
472 0 Simultaneous Equations
479 0 Irrigation Flow Rates
480 0 Tempus Fugit
508 0 Morse Mismatches
509 0 RAID!
510 0 Optimal Routing
511 0 Do You Know the Way to San Jose?
513 0 Window Frames
522 0 Schedule Problem
528 0 The Problem of Train Setout
582 0 Randomly Wired Neural Nets
596 0 The Incredible Hull
597 0 Last Name First, Please
649 0 You Who?
675 0 Convex Hull of the Polygon
717 0 Calculating Expressions on Turing Machine
724 0 Reverse
761 0 Transform those strings
768 0 Crossword
770 0 Puncher
771 0 Flying Stars
772 0 Divide et unita
773 0 The JustaPox Language
774 0 Driving in City Squares
778 0 Recording a tape
779 0 Wily Hacker's Problem
780 0 Sentence Generator
781 0 Optimisation
788 0 One Day Tours
789 0 Indexing
791 0 Term Reductions
792 0 Program Modules
800 0 Crystal Clear
803 0 Page Selection by Keyword Matching
805 0 Polygon Intersections
867 0 Storing Images in a Sequence
875 0 Monopoly
876 0 Balanced Expressions
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