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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9971 Adventurous Chess Masters   20 24.79
15576 Aesthetic Text   15 38.10
10210 After Party Transfers   1 36 4.79
34
28
27496 Again Eid Salami   3 126 45.54
23
34
12805 Age of Empires   3 15.62
34247 Agent prefix   -5 54 37.42
1
1
297 Aggressive cows   1063 43037 36.01
16
23
11613 Aho-Corasick Trie   4 48 10.40
34
21
1021 Aibohphobia   308 10622 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 2477 15.82
21
18
9756 Alaska   24 2923 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   1 175 22.93
105 Alice and Bob   3 170 27.36
42
42
9934 Alice and Bob   1 145 33.39
1
34
15430 Alice in Amsterdam, I mean Wonderland   3 135 23.19
17
23
10565 Alice Sieve   31 5047 53.41
2
7
5151 Alice’s Cube   8 503 29.01
24
21
26445 Alicias Afternoon Amble   11 186 57.24
20
26
8651 Alien arithmetic   1 40 18.81
32940 Alien Language   2 70 39.44
28
34
145 Aliens   2 420 29.80
34
42
11789 Aliens at the subway   2 67 17.03
23
23
10401 Aliens at the train   85 4385 29.22
13
10
10471 Aliens at the train, again!   28 812 44.92
16
16
26703 All about Sorting!   10 83 41.55
16
17
1774 All Discs Considered   10 513 28.32
26
22
31591 All in One   7 104 8.73
31
24
10283 ALL IZZ WELL   69 3454 31.30
17
14
12107 All Possible Barns   1 32 27.89
34
34
14844 All Your Base   12 536 29.96
11
11
34482 Allowed Factors   4 74 26.43
14
27
26771 Almost Prime Numbers Again   16 275 18.88
24
20
3405 Almost Shortest Path   80 1664 31.60
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 1736 50.50
3
8
10105 Alphabet Soup   29 48.81
29455 Alphabetic Rope   7 216 35.27
20
13
29458 Alphabetic Rope2   105 50.17
29461 Alphabetic Rope3   3 125 55.47
34
17

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