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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
1030 Triple Fat Ladies   106 19217 51.73
4
12
8372 Triple Sums   6 413 27.33
21
27
707 Triple-Free Sets   2 211 39.21
23
34
19143 TRISQRS   172 38.08
28
34
10328 TRIVIADOR   4 174 31.47
14
20
2130 Trolls   29 39.19
5885 Troops of Sand Monsters   2 114 17.47
17
17
18941 True Friends   30 1034 51.33
12
13
25144 Truncky Numbers   20 349 29.04
17
17
2022 Truth Or Lie   104 21.17
696 Truth or not   1 275 22.00
1
1
28740 Try to complete   22 677 25.57
23
23
35672 Try to learn properly   7 47 16.17
21
21
21642 Tsunami   3 145 40.88
28
23
9040 Tug of War   12 623 25.80
9
21
21347 Tulip And Numbers   15 1038 21.33
14
14
9753 Tuple Division   17 3.92
9534 Turn on the lights   1 73 33.00
1
34
9535 Turn on the lights 2   2 23 32.97
26
26
31230 TV Schedule   5 81 51.58
9
5
8795 Twenty Questions   1 44 21.94
4681 Twice   5 287 21.21
24
27
7734 Twist and whirl - want to cheat   8 245 45.51
24
17
34670 TWISTED ARRAY   206 40.47
2
14
5115 Two "Ways"   67 15.62
6377 Two Array Problem   4 189 28.02
17
26
6831 Two Ball Game   67 28.44
1710 Two Ends   115 3790 41.56
18
17
11579 Two Famous Companies   3 235 22.02
23
28
17559 Two Game   5 327 37.27
1
39
6717 Two Paths   9 231 17.81
34
36
4070 Two Professors   104 14.10
26350 TWO SEQUENCES PROBLEM   12 271 31.69
10
15
91 Two squares or not two squares   79 6097 24.70
11
14
30499 TWO STRINGS   6 26 28.75
15
15
36413 Two Sum Query   4 66 34.07
17
23
17877 Two Swamills   1 142 51.84
17
34
4378 Twofive   66 26.45
3249 Typesettin   2 36 46.67
1
1
7861 UFO   1 41 30.21
17
17
41044 UkÅ‚adanie kart - Card stacking   1 32 42.86
17
17
3314 Umnozak   115 30.02
42
17
1002 Uncle Jack   13 2970 39.60
9
8
2271 Undecodable Codes   48 12.27
21049 Under Construction Forever   1 17 40.91
17
34
15649 Unequalled Consumption   1 14 23.53
17
34
21643 Unhappy Numbers   7 53 37.91
31
31
14862 Union Laser   3 31 47.34
23
17
27379 Unique Code   22 130 19.74
21
21
10814 Unique Paths   130 46.01

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