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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
14979 Diablo Bot   3 78 13.73
13
21
14981 Light Cycling   4 78 14.41
21
21
15164 primes triangle (I)   3 78 7.05
34
26
16207 Football Fever   1 78 44.16
17
17
18249 Gopu and the Grid Problem   2 78 33.78
12
26
20637 Ajob Subsequence   78 39.11
1
17
22303 Mau-Mau   5 78 16.67
36
17
32949 Ada and Digits 2   5 78 33.12
30
30
393 Hexagon   77 48.65
17
1
1815 Problems Collection (Volume X)   77 7.26
3413 Traveling Shoemaker Problem   1 77 17.32
26
17
3754 MAJMUN   1 77 40.47
17
17
4172 Multiplicative digital root   1 77 24.07
8841 Avaricious Maryanna   1 77 37.90
9858 Štef and Barica   2 77 37.69
34
17
11603 Polynomial f(x) to Polynomial h(x)   77 57.39
20957 Alia and 3 Khans   1 77 31.54
34
17
23153 Equivalent Passwords   9 77 36.16
21
14
32029 Ada and Connections   7 77 12.86
26
28
33777 NT Games   12 77 41.92
19
23
34482 Allowed Factors   4 77 27.64
14
27
73 Bacterial   1 76 18.66
50
17
987 Mobile   76 16.14
17
17
1794 Greedy Hydra II   2 76 18.57
26
26
2052 Hexagonal Parcels   76 28.93
3004 Life Game   -1 76 35.47
34
1
4414 Highway   1 76 23.73
34
17
4420 Counting Graphs   76 36.64
4456 Jumbo Airlines   2 76 36.79
34
34
4585 Star Wars   1 76 36.63
7200 Strange Calendar   1 76 47.81
1
1
7779 Stock Chase   76 30.19
17
17
10421 Run, Snipe, Run   76 30.09
11718 Boa viagem, Roim   76 16.42
1478 The Easiest Problem   75 9.20
17
17
1708 Square Count   75 30.98
2140 (un)Fair Play   75 38.08
3108 Charlesbert and Merangelou   75 44.44
3486 Elimination   75 30.31
4052 Game   75 29.27
8333 Place-name game   75 36.34
8420 Finding Minimum   1 75 36.90
1
17
8550 Longest Square Factor   5 75 18.47
21
37
8839 Longest Common Difference Subsequence   3 75 25.06
34
39
10231 Wizarding Duel   1 75 19.48
1
1
10437 Quadrilaterals   75 25.42
10725 String Subsequence   3 75 17.24
26
26
11105 Email ID   75 21.91
1
1
15439 Zombie Outbreak   5 75 22.86
21
21
16278 Watching the game   1 75 32.90
17
17

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