list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
32900 K-dominant array   3 285 30.84
30
30
32949 Ada and Digits 2   5 71 37.53
30
30
34537 Prime Lover Finding   5 50 27.31
30
24
37380 Acronym   4 29 26.51
30
34
1812 Longest Common Substring II   14 1796 17.65
29
29
20644 Zero Query   17 627 19.70
29
28
10233 Magical Bridges   9 162 27.63
29
24
26778 NO GCD   11 101 22.42
29
38
22463 Smallest Number (medium)   9 68 22.01
29
25
32257 Apoorv and Math problem   11 137 15.64
29
16
2939 Query on a tree V   75 1714 27.89
29
30
2371 Another Longest Increasing Subsequence Problem   15 763 13.22
29
33
9577 Dynamic Tree Connectivity   12 538 27.90
29
28
11050 R Numbers   15 253 55.86
29
33
115 Family   2 68 11.62
28
28
1466 Blue Mary Needs Help Again   4 202 20.61
28
34
1479 The GbAaY Kingdom   1 122 19.23
28
39
1696 Will Indiana Jones Get There   2 119 26.80
28
23
1707 Reliable Nets   4 340 31.57
28
23
2414 Calculate The Cost   8 336 22.26
28
17
2670 Count Minimum Spanning Trees   4 175 17.25
28
39
2678 Closest distance   1 159 13.52
28
34
3413 Traveling Shoemaker Problem   2 73 16.87
28
17
3732 Slikar   1 206 51.33
28
17
3999 FROGGER   3 97 27.01
28
23
4667 Gremlins   3 52 28.15
28
34
5294 Recurrence   2 255 14.32
28
17
6956 IOI2009 Mecho   3 159 18.18
28
23
7022 Cow Patterns   3 110 24.37
28
28
7866 Regular expressions (Hard)   1 96 24.95
28
23
8542 Modern Pocket Calculator   35 9.15
28
6
8591 Prime Permutations   5 103 30.93
28
23
11443 Davids Greed   3 247 26.63
28
19
11580 A Famous Game   379 33.94
28
28
12241 Classification from ErdÅ‘s and Selfridge   5 27 17.71
28
28
12746 Colorful Circle (EASY)   5 462 20.68
28
23
13738 Happy Valentine Day (Valentine Maze Game)   3 138 36.42
28
23
14928 Pyramidal Constructions   -1 334 49.90
28
23
15190 MAXIMUM RARITY   6 84 33.23
28
34
15769 Enjoy Adding GP to Series   2 60 26.50
28
34
17711 Gopu and Create Collections Part Two   4 260 29.03
28
28
18094 Robert Langdon & Florence   1 175 64.69
28
23
18667 Product of factorials (hard)   3 42 26.61
28
34
19143 TRISQRS   169 38.02
28
34
19148 Kill them All   3 110 22.38
28
34
19722 Modular Tetration   3 32 69.98
28
28
20041 Hippo and Bloody Jungle   -1 37 18.60
28
17
21642 Tsunami   3 138 41.96
28
23
21834 Sadde and His City   3 45 24.22
28
23
23806 Yossy, The King of IRYUDAT   3 43 5.48
28
39

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