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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5142 A Pair of Graphs   1 70 54.23
17
17
5147 Fire-Control System   37 22.40
34
17
5148 Get-Together at Stockholm   1 56 48.36
1
17
5157 Game Simulator   1 23 8.99
50
17
5294 Recurrence   2 262 14.44
28
17
5452 Hop Do not Walk   2 148 35.23
17
17
5453 Air Strike   2 178 23.78
17
17
5463 Bird or not bird   2 119 38.48
1
17
5541 Sequoiadendron   1 66 44.25
17
17
5885 Troops of Sand Monsters   2 114 17.47
17
17
5917 Factorial length   11 3478 34.57
5
17
6042 Another Box Problem   10 847 49.90
6
17
6289 Bomberman   214 25.76
17
17
6325 Many polygons   3 202 26.44
12
17
6499 Breaking Chocolates   1 104 18.89
17
17
6650 Consecutive sequence   4 324 45.08
20
17
6665 Easy Longest Common Substring   2 149 23.11
23
17
6681 Point on the side of the rectangle   1 138 44.69
17
17
6700 Make it Smooth   2 73 20.72
17
17
6726 Goldbach graphs   3 35 57.14
17
17
6773 Dinostratus Numbers   1 95 18.13
17
17
6805 Counter attack   3 177 60.98
17
17
6825 Field Plan   1 105 30.22
17
17
6829 Polynomial   2 194 30.39
17
17
6978 Check 1324   4 101 23.08
17
17
7101 Charly And Nito   4 314 37.22
13
17
7103 Edit Distance   1 74 18.02
17
17
7109 Indicator of progression   2 325 23.89
17
17
7186 Counting Pascal   2 134 29.77
17
17
7189 Falta Envido   1 182 36.33
17
17
7211 Elastic Bands   1 49 55.97
17
17
7216 The Clocks   1 281 40.48
17
17
7230 Garbage Collection   1 159 39.80
17
17
7249 Perfume   2 115 16.00
1
17
7260 Number Game   1 94 26.01
17
17
7297 Placing Coins on a Grid   2 61 32.53
17
17
7322 Prime Pattern   1 97 36.16
23
17
7403 Messy Administration   1 14 30.88
17
17
7404 Just on Time   2 16 35.38
17
17
7408 Camelot   2 64 30.88
17
17
7425 Hackers   4 174 31.38
26
17
7579 Power Calculus   327 49.18
34
17
7628 Mathematics   2 67 29.05
17
17
7696 Encryption   3 1004 35.88
17
17
7734 Twist and whirl - want to cheat   8 245 45.51
24
17
7739 Sound   12 485 33.86
20
17
7746 Cocircular Points   64 16.93
42
17
7753 Happy Numbers II   3 651 15.95
23
17
7762 Electric Needs   1 25 38.00
34
17
7778 Land Division   1 40 43.50
17
17

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