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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
3924 Filchs Dilemna   7 533 65.21
9
17
3933 Minimum Permutation   6 187 38.34
12
17
3964 Investment Money   15 627 25.73
16
17
3969 M&M Game   12 1321 42.35
4
17
3970 Convert to Decimal Base System   56 37.34
17
17
4061 Polygon   4 215 31.41
21
17
4176 A Knightly Pursuit   2 67 29.28
26
17
4180 Pizza Location   2 577 18.60
31
17
4203 Double Queue   1 84 41.38
17
17
4227 "Shortest" pair of paths   3 214 41.11
23
17
4310 Permutacja   4 170 38.96
12
17
4414 Highway   1 76 23.73
34
17
4416 Jumping Hands   1 212 65.75
17
17
4558 I Speak Whales   188 42.51
17
17
4568 Rotating Rings   1 298 29.72
17
17
4593 Arithmetic sequence   1 67 9.55
34
17
4644 Proving Equivalences   1 199 28.66
17
17
4657 Gas Wars   145 35.87
34
17
4658 Help Hemant Verma   1 51 14.20
9
17
4666 Wireless   1 128 37.02
17
17
4761 Strategy game   2 44 55.64
9
17
4784 Diophantine equation   3 155 40.59
26
17
5011 Library for Madrid   59 42.62
17
17
5128 Bomb the Bridge   1 46 30.80
17
17
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 20.76
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

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