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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
19975 Amazing Prime Sequence (hard)   5 94 44.01
39
45
19976 HYPERCUBES   1 121 45.16
1
17
19985 GCD Extreme (hard)   2 353 36.49
26
34
19991 In case of failure   3 132 40.74
34
34
19996 Moon Safari (medium)   4 81 40.63
30
34
19997 Moon Safari (Hard)   3 50 51.47
34
39
20038 Easiest Loop 1   3 378 48.58
6
17
20041 Hippo and Bloody Jungle   -1 42 21.45
28
17
20050 Love Story 2   1 89 38.11
9
9
20063 Large subsequence Problem   20 451 42.11
10
14
20100 Honda and Kagawa   3 381 45.74
1
21
20167 Array with Hudai Calculation   1 51 24.51
34
34
20170 Coloring Segments   5 91 20.51
31
34
20172 Divisiblity by 3   11 585 30.53
14
10
20173 Counting Divisors (square)   6 481 21.67
29
38
20174 Counting Divisors (cube)   7 399 35.64
21
42
20196 The Magical Bag   3 199 38.38
34
34
20327 Triangles   1 29 28.40
50
50
20562 Tracy and Charlie   1 47 55.56
17
34
20563 Minion Circle   23 34.34
20635 Dortmund Dilemma   1 21 47.46
17
34
20637 Ajob Subsequence   78 39.06
1
17
20644 Zero Query   17 756 19.43
31
27
20654 Interesting Subset   5 96 23.69
11
14
20673 Count The Indexes   7 250 29.32
17
30
20689 WA,RTE and Placements   1 27 40.76
34
34
20752 LAZY FRIENDS   3 39 37.67
17
13
20775 Roger and tree   22 341 27.69
17
22
20845 Interesting Numbers   4 220 24.14
13
5
20846 Interesting Selection   5 128 43.78
13
26
20848 Interesting Game   59 44.48
20849 Interesting queries   3 45 33.86
34
34
20863 Largest Submatrix   81 27.10
20872 Counting Pairwise Coprime Triples   1 49 53.62
34
34
20926 Special Numbers (Reverse and Add)   1 21 11.94
26
26
20930 Progression   4 26 8.01
34
34
20931 Square-Free Product (Hard)   2 65 36.52
17
21
20951 Pebbles   1 62 56.62
1
17
20957 Alia and 3 Khans   1 76 31.39
34
17
20970 Alia and Handsome Devil   5 396 30.50
17
12
20971 Alia and Substrings   24 20.59
20972 Alia and Cryptography   3 101 43.86
30
26
20977 Car Game   7 50 33.49
15
17
20979 Good   6 86 40.22
17
26
20980 Chicken Joggers   18 40.32
20984 Music Academy   2 69 47.37
1
9
20985 Archipelago   6 106 62.77
11
4
20986 Hypertubes   7 50 43.32
20
22
20987 Sequence   2 30 24.39
9
17
21049 Under Construction Forever   1 15 38.10
17
34

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