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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
19301 Operators (new ver)   3 40 6.54
38
17
21640 Nested Palindromes   2 25 20.81
38
38
25458 Boxes   4 96 38.00
38
38
34118 Prime Pesticide   5 21 19.21
38
34
6779 Can you answer these queries VII   17 1164 19.32
38
27
2666 Query on a tree IV   5 674 13.65
38
34
5542 Counting pairs   4 129 26.33
39
36
8075 Sequence   3 57 27.73
39
39
8820 Okret   3 40 19.42
39
34
9687 Xavier is Learning to Count   1 28 17.84
39
39
10354 Count Strings   3 17 7.88
39
39
10820 Obsession   4 32 23.98
39
39
11707 Wrong directions   2 44 30.85
39
34
13829 Tjandra 19th birthday present (HARD)   2 36 38.02
39
23
15165 primes triangle (II)   2 18 31.62
39
17
15336 Hello Intercal!   2 169 59.31
39
17
17125 Thor vs Frost Giants   1 187 28.90
39
28
19975 Amazing Prime Sequence (hard)   5 81 41.88
39
45
26073 Counting Divisors   3 114 24.78
39
34
34499 So Many Squares   4 22 33.08
39
39
36936 K-Divisors   3 9 18.30
39
39
38389 Phasmophobia   5 26 29.82
39
39
4948 Integer Factorization (29 digits)   8 100 15.77
40
34
34096 Counting Divisors (general)   4 310 34.75
40
43
9576 Dynamic Graph Connectivity   8 287 37.34
41
38
3 Substring Check (Bug Funny)   8 1064 7.62
42
16
105 Alice and Bob   3 165 27.12
42
42
1433 The Sum   2 279 17.01
42
34
2023 One Instruction Computer Simulator   41 11.22
42
42
3314 Umnozak   102 29.03
42
17
3833 Tresnja   1 126 52.36
42
42
3902 Fight with functions   3 20 6.55
42
34
4157 Domino   4 54 50.42
42
42
5703 Primes of Lambda   2 22 26.97
42
42
6489 Finding the Kth Prime (Hard)   7 76 9.73
42
36
7356 Iterated Bitcount Function   2 36 17.72
42
34
7561 Lexicographic position   1 33 33.86
42
26
7746 Cocircular Points   59 16.57
42
17
9985 Distance   2 61 24.14
42
34
11202 Number Theory   -1 31 31.03
42
34
11482 Count on a trie   48 28.41
42
50
13980 Sudoku goblin   2 72 40.92
42
34
15381 Cut The Rope   3 18.42
42
1
18522 Tours   22 13.10
42
26
21858 Christmas is coming   2 27 13.38
42
26
22086 Prime Power Test   2 16 14.04
42
17
32088 Chessboard State 1: National Chess Tournament   5 11 28.10
42
21
32223 Ada and Lychees   3 14 27.37
42
26
33048 Find Linear Recurrence   4 23 34.48
42
50
33932 Ada and Prime   5 77 22.95
42
26

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