list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
4523 Binomial Coefficients   208 41.44
23
12
4528 Frog Wrestling   68 37.26
4533 Determinant of Banded Matrices   20 33.33
4552 Adding up Triangles   138 35.96
4558 I Speak Whales   183 42.48
17
17
4559 A Day at the Races   125 17.31
4574 Riding in cycles   43 23.95
4586 Texas Trip   69 38.57
4588 SETI   129 66.41
4657 Gas Wars   143 35.64
34
17
4717 Grid Points in a Triangle   99 46.63
4785 Starship   13 29.77
4828 ZSequence   53 18.80
4881 Words on graphs   107 11.88
34
5011 Library for Madrid   58 42.48
17
17
5014 Crazy Receptionist   11 12.98
5015 Decode the Castanets   35 40.17
5016 Guernica   24 60.00
5018 Street Gambler   30 47.06
5102 Mystic Craft   57 46.20
5103 Top 10   42 15.81
5104 Spam Detection   16 15.97
5115 Two "Ways"   65 15.47
5143 Binary Integer   53 50.00
5144 Cryptography Reloaded (Act I)   34 26.43
5145 Déjà vu   17 15.12
5146 Experiment on a … Cable   15 34.88
5147 Fire-Control System   36 21.98
34
17
5149 History of Languages   31 17.11
5150 Junk-Mail Filter   133 21.53
5153 Compressed String   44 27.46
5154 Cryptography Reloaded (Act II)   35 27.14
5155 Exciting Time   44 13.90
5156 Flowers Placement   43 31.74
5158 Heroes Arrangement   14 10.91
5159 Island Explorer   36 15.49
5160 Jinyuetuan Puzzle   44 37.36
5163 Tower of Vientiane   104 34.79
5182 Double Sorting   15 8.70
5300 Mexican Standoff   23 22.16
5373 Four Mines   14 6.44
5446 Fishing Net   172 31.73
5462 Art Plagiarism   11 24.62
5522 Buy Your House   15 37.25
5523 Highway Patrol   18 41.76
5531 Kutevi Hard   90 43.40
5566 Math with Bases   15 11.06
5637 LL and ErBao   5 41.43
5831 Permutation Jumping   136 59.33
5973 Selecting Teams   229 23.11

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