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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9444 Block Drop   1 25 27.33
34
34
9459 Connecting three towns (variation)   1 57 24.62
17
34
9507 Mario and Mushrooms   346 57.00
1
34
9508 Magic Bitwise AND Operation   1 107 12.66
34
34
9518 The Time of Day   1 39 21.98
17
34
9520 Tanks   1 16 12.67
34
34
9534 Turn on the lights   1 73 33.00
1
34
9638 Circuits   25 9.33
50
34
9641 Factory of Bridges   1 69 26.01
17
34
9693 Revenge of Fibonacci   2 97 31.16
34
34
9721 2s Complement   1 179 32.17
34
34
9725 Queens on a Board   2 54 50.38
34
34
9748 Palindromes   2 94 26.06
34
34
9751 Repairing Roads   1 21 11.02
17
34
9860 The Glazier 2   1 43 64.56
17
34
9887 Binomial coefficients   1 170 27.10
34
34
9892 Pool construction   1 92 57.26
1
34
9916 Help Dr Whooves   2 57 44.65
17
34
9934 Alice and Bob   1 163 34.48
9
34
9941 GRE Words   2 129 20.70
34
34
9964 Fibonacci vs Polynomial   6 130 40.90
24
34
9975 No Stories Any More!   1 48 30.28
34
34
9985 Distance   2 63 23.06
42
34
10072 Lights   1 63 47.47
17
34
10236 Generations   1 57 20.53
34
34
10377 project groups   132 51.55
34
34
10438 Crazy texting   2 174 25.98
26
34
10439 Walking Robot   1 114 46.15
34
34
10453 Spring Loaded   -2 160 31.30
17
34
10539 Bunnies   3 36 11.34
34
34
10547 Delivery Route   5 65 18.88
34
34
10572 Cheating on the contest   1 30 7.40
17
34
10605 Counting Formations   2 17 41.54
34
34
10612 Funny Areas   3 98 33.33
34
34
10699 Symmetry   1 31 31.43
17
34
10704 The Great Escape   1 36 28.72
34
34
10931 Online Bridge Searching   5 109 34.79
34
34
11267 Arnook Defensive Line   1 45 27.33
34
34
11274 Lights and Switches   1 60 29.84
17
34
11334 Lucifer Sort   7 1.14
34
11345 lcm addition   2 78 32.11
34
34
11414 Combat on a tree   3 256 31.12
28
34
11575 A Famous Equation   2 81 27.32
34
34
11707 Wrong directions   2 50 30.81
39
34
11830 DOJO Corridor I   -1 32 31.47
50
34
11834 DOJO Corridor II   3 27 30.69
42
34
11901 Paths in a Tree   1 24 26.19
1
34
11946 Zig-Zag Permutation 2   1 7 25.49
26
34
12007 Fibonaccibonacci (easy)   1 115 29.17
1
34
12009 Fibonacci recursive sequences (hard)   2 27 10.04
34
34

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