list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7805 Kitchen Robot   3 90 32.24
9
9
7807 The Lucky Prisoner   27 9.84
7826 Tree Isomorphism   10 622 23.66
19
27
7851 Stacks of Zippy   1 19 16.41
34
34
7857 Tower Game (Hard)   62 14.63
34
34
7859 Upper Right King (Hard)   3 171 37.39
26
34
7860 Deal or No Deal   1 13 30.77
7861 UFO   1 41 30.21
17
17
7862 Prisoner of Benda   27 25.83
7864 Four Chips (Hard)   6 167 30.35
31
17
7866 Regular expressions (Hard)   1 140 27.33
28
23
7868 Join   1 21 47.31
34
17
7870 Invisible point   17 1671 42.96
4
18
7874 Calculator   29 24.36
7875 Miles and kilometers   6 612 47.06
9
9
7881 Ljutnja   3 641 24.32
34
21
7882 Tabovi   3 333 49.50
34
34
7884 Crni   60 55.93
7886 Boards (Hard)   40 37.14
7891 Fibonacci Sequence   102 30.56
34
34
7934 Operating System Problems (Task Scheduling)   2 142 53.65
17
17
8097 Islands   73 46.82
8100 Shifting Lights   2 229 31.20
17
17
8104 Friendly Knights   151 45.76
8119 CIRU2   1 175 36.22
34
34
8177 Beautiful numbers EXTREME   -2 291 27.46
26
9
8222 Substrings   7 1325 30.13
24
27
8265 Zero Count   1 15 12.03
50
17
8316 Win gold medal   55 26.03
8317 Red Balls   47 44.77
8318 color the balls   69 42.80
50
50
8363 COSTLY CHESS   23 1767 43.08
14
12
8371 TRIANGULAR PRISM   11 2096 68.43
2
8
8374 PARKET   4 1854 56.20
3
4
8398 Quadratic Equation   1 605 29.01
34
17
8456 PRIMITIVEROOTS   8 375 46.34
8
20
8478 Ancient Pocket Calculator   7 4.25
8491 Messy Phone List   1 54 19.69
34
17
8542 Modern Pocket Calculator   35 9.05
28
6
8558 Linear Equation Solver   2 22 34.09
17
34
8574 Four in a row   2 23 17.12
26
17
8591 Prime Permutations   5 110 30.96
28
23
8886 Guess number!   21 5.90
34
34
9042 HQNP Incomputable   4 48 33.33
1
9
9046 Clock Hands   2 378 22.32
34
26
9070 Lightning Conductor   3 688 34.93
9
17
9086 Formula 3D   6 9.86
9190 Perfect Maze   31 1.73
9199 Circular Track   30 3351 40.29
7
14
9534 Turn on the lights   1 73 33.00
1
34

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