list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
5298 Interval Challenge   4 143 16.92
24
27
8372 Triple Sums   6 413 27.33
21
27
10405 Shooting the balloons!   11 347 36.02
23
27
10649 Mirror Number   6 215 22.24
14
27
11476 Weird Points   11 186 27.97
22
27
12916 MMM   4 95 18.85
24
27
13447 Crayon   12 147 26.70
23
27
16128 THE INDIAN OCEAN   3 53 9.67
27
27
16282 Horace and his primes   5 263 40.98
27
27
21964 Golf Bot   5 85 36.36
34
27
34482 Allowed Factors   4 77 27.64
14
27
37391 Development Colored   4 21 36.45
27
27
41944 BitPlay69   6 279 31.14
27
27
2277 Silly Sort   30 882 55.45
17
27
212 Water among Cubes   54 1615 26.43
25
27
704 Remove The String   13 663 15.28
19
27
7826 Tree Isomorphism   10 623 23.63
19
27
7897 Skyline   13 949 32.61
12
27
3943 Nested Dolls   31 1239 23.66
20
27
7155 Test   10 425 19.34
34
27
8222 Substrings   7 1325 30.13
24
27
13686 finding maximum possible number   8 369 22.08
15
27
15256 Partition function (EASY)   8 103 39.65
22
27
15847 Equalize the Sectors   5 159 59.85
10
27
21193 Adjusting Ducks   3 67 31.82
20
27
22384 Saving Planet Bomber (Easy)   3 46 41.84
1
27
33019 Catering Contracts   7 93 34.31
23
27
4053 Card Sorting   26 696 43.66
22
27
709 The day of the competitors   38 1566 28.81
17
27
660 Dungeon of Death   14 1355 42.80
13
26
4318 Catch Fish   11 508 33.21
21
26
9185 TORNJEVI   10 224 33.41
26
26
2817 Distinct Increasing Subsequences   9 795 24.57
22
26
4191 Sky Code   13 779 29.59
19
26
6556 N DIV PHI_N   14 749 38.38
5
26
23963 Easy Factorials   10 118 17.20
27
26
8980 Cost   48 1264 29.19
18
26
15766 Enjoy Sum with Operations   15 377 27.21
20
26
3871 GCD Extreme   82 3107 29.38
19
26
30690 Ada and Nucleobase   31 528 44.02
24
26
17 The Bytelandian Cryptographer (Act I)   9 1391 41.45
15
26
19 The Bytelandian Cryptographer (Act III)   1 129 34.05
17
26
45 Commedia dell Arte   2 251 32.28
5
26
49 Hares and Foxes   1 119 7.85
17
26
90 Minimizing maximizer   3 389 24.84
17
26
135 Men at work   1 268 38.56
24
26
185 Chase   2 221 24.80
1
26
200 Monodigital Representations   1 168 30.27
26
26
208 Store-keeper   2 135 15.52
34
26
220 Relevant Phrases of Annihilation   699 23.26
26
26

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