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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9971 Adventurous Chess Masters   19 23.15
15576 Aesthetic Text   15 38.10
10210 After Party Transfers   1 36 4.79
34
28
27496 Again Eid Salami   2 125 45.60
26
34
12805 Age of Empires   3 15.62
34247 Agent prefix   -5 54 38.67
1
1
297 Aggressive cows   1055 39798 36.10
16
23
11613 Aho-Corasick Trie   4 47 10.32
34
21
1021 Aibohphobia   306 10569 36.17
12
17
5296 Air Combat   -1 64 14.85
34
5453 Air Strike   2 175 23.63
17
17
7387 Airplane Parking   53 22.88
17382 Airplane Parking   1 17 31.17
17
1
20637 Ajob Subsequence   77 38.94
1
17
21326 Akbar , The great   63 2366 15.73
21
18
9756 Alaska   24 2917 35.81
5
3
20957 Alia and 3 Khans   1 74 31.44
34
17
20972 Alia and Cryptography   3 101 43.86
30
26
20970 Alia and Handsome Devil   5 391 30.43
17
12
20971 Alia and Substrings   20 21.99
3482 Alias   4 57.14
292 Alibaba   1 165 23.08
105 Alice and Bob   3 165 27.12
42
42
9934 Alice and Bob   1 135 32.61
1
34
15430 Alice in Amsterdam, I mean Wonderland   3 133 23.46
17
23
10565 Alice Sieve   31 5005 53.35
2
7
5151 Alice’s Cube   8 501 28.99
24
21
26445 Alicias Afternoon Amble   11 185 57.17
20
26
8651 Alien arithmetic   1 40 18.81
32940 Alien Language   2 68 39.51
28
34
145 Aliens   2 419 29.78
34
42
11789 Aliens at the subway   2 67 17.03
23
23
10401 Aliens at the train   85 4349 29.27
13
10
10471 Aliens at the train, again!   28 811 45.00
16
16
26703 All about Sorting!   10 83 41.55
16
17
1774 All Discs Considered   10 513 28.52
26
22
31591 All in One   7 104 8.70
31
24
10283 ALL IZZ WELL   69 3417 31.24
17
14
12107 All Possible Barns   1 32 27.89
34
34
14844 All Your Base   12 534 29.91
11
11
34482 Allowed Factors   4 74 26.43
14
27
26771 Almost Prime Numbers Again   15 257 18.59
25
20
3405 Almost Shortest Path   80 1660 31.58
22
21
7947 Almost square factorisation   5 120 51.97
8
11
14761 Almost-isosceles Pythagorean triple (easy)   1 64 41.65
359 Alpha Centauri Tennis   2 1721 50.53
3
8
10105 Alphabet Soup   28 50.00
29455 Alphabetic Rope   6 202 34.54
20
12
29458 Alphabetic Rope2   100 49.65
29461 Alphabetic Rope3   3 117 54.99
34
17

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