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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
19687 Symmetric matrix 2   0 0.00
19722 Modular Tetration   4 40 70.31
30
30
19786 Mr Toothless and His GCD Operation   7 389 30.69
6
9
19795 Psycho34 (easy)   7 57 22.40
27
17
19899 Middle Earth   2 47 12.06
26
17
19913 Counting Pythagorean Triples   3 18 14.14
26
42
19954 Travelling Knight 2   3 16 13.73
45
34
19957 GETTING AN AP   5 491 36.84
8
12
19971 100pct failure in 72 hours   1 8 45.16
17
50
19975 Amazing Prime Sequence (hard)   5 89 43.53
39
45
19976 HYPERCUBES   1 117 45.96
1
17
19985 GCD Extreme (hard)   2 331 35.97
26
34
19991 In case of failure   3 127 40.52
34
34
19996 Moon Safari (medium)   4 78 39.91
30
34
19997 Moon Safari (Hard)   3 49 54.86
34
39
20038 Easiest Loop 1   3 376 48.53
6
17
20041 Hippo and Bloody Jungle   -1 40 19.92
28
17
20050 Love Story 2   1 86 37.79
9
9
20063 Large subsequence Problem   20 447 42.11
10
14
20100 Honda and Kagawa   3 380 45.69
1
21
20167 Array with Hudai Calculation   1 50 24.29
34
34
20170 Coloring Segments   5 88 20.53
31
34
20172 Divisiblity by 3   11 584 30.49
14
10
20173 Counting Divisors (square)   6 465 21.58
29
38
20174 Counting Divisors (cube)   7 385 35.46
21
42
20196 The Magical Bag   3 198 38.33
34
34
20327 Triangles   1 29 28.92
50
50
20562 Tracy and Charlie   1 44 57.95
17
34
20563 Minion Circle   19 32.97
20635 Dortmund Dilemma   1 19 44.44
17
34
20637 Ajob Subsequence   77 38.94
1
17
20644 Zero Query   16 724 19.52
30
27
20654 Interesting Subset   5 95 23.45
11
14
20673 Count The Indexes   7 247 29.27
17
30
20689 WA,RTE and Placements   1 25 40.00
34
34
20752 LAZY FRIENDS   3 33 50.54
17
13
20775 Roger and tree   22 330 27.93
17
22
20845 Interesting Numbers   4 219 24.08
13
5
20846 Interesting Selection   5 124 43.17
13
26
20848 Interesting Game   59 44.48
20849 Interesting queries   3 44 36.17
34
34
20863 Largest Submatrix   80 26.92
20872 Counting Pairwise Coprime Triples   1 48 54.07
34
34
20926 Special Numbers (Reverse and Add)   1 21 12.57
26
26
20930 Progression   4 26 8.84
34
34
20931 Square-Free Product (Hard)   2 64 36.29
17
21
20951 Pebbles   1 36 54.12
1
17
20957 Alia and 3 Khans   1 74 31.36
34
17
20970 Alia and Handsome Devil   5 393 30.43
17
12
20971 Alia and Substrings   22 22.76

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