list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
17725 Bad XOR   49 1034 23.74
16
22
20775 Roger and tree   22 328 27.86
17
22
18284 Petya and the Road Repairs   59 875 23.99
19
22
1677 Halloween treats   6 918 40.01
17
22
1790 Binary Search Heap Construction   6 316 22.94
21
22
4198 Lego   5 175 25.25
24
22
4480 Chaos Strings   14 526 29.97
17
22
10415 Dracula   6 140 21.71
20
22
15266 III Powers   4 124 64.34
20
22
22412 Divisors of factorial (hard)   9 158 47.59
22
22
29434 Counting WOW-Substrings2   7 98 44.97
15
22
30349 Strange Waca   9 40 19.64
17
22
33777 NT Games   11 75 41.75
20
22
34484 Candy pair   7 60 42.17
15
22
288 Prime or Not   73 4955 18.80
21
22
10738 Ra-One Numbers   35 1532 33.83
18
22
2416 Distinct Subsequences   94 3697 36.22
12
22
3436 Histogram   44 1490 44.56
19
22
1774 All Discs Considered   10 513 28.52
26
22
14697 Loop Expectation   11 663 49.16
14
22
26647 Factorial and divisorss   12 98 46.41
20
22
22 Triangle From Centroid   9 2641 46.59
9
22
4110 Fast Maximum Flow   47 2806 34.28
25
22
370 Ones and zeros   149 4452 30.03
19
22
2053 Key Task   37 1173 31.65
24
22
27268 Count Subsets   19 213 44.96
10
22
9055 Most Frequent Value   28 713 23.27
15
22
338 Roads   37 1381 23.86
17
22
423 Assignments   242 4636 33.55
18
21
9 Direct Visibility   4 251 11.93
30
21
58 Crime at Piccadily Circus   3 636 13.91
31
21
86 November Rain   4 292 17.48
21
21
100 Tower of Babylon   44 3056 50.51
19
21
397 I Conduit   3 190 15.40
21
21
403 Sort fractions   6 706 32.96
9
21
1703 ACM (ACronymMaker)   52 1072 29.80
26
21
1723 Bee Maja   3 557 53.51
17
21
3476 Deposit   2 232 39.00
17
21
3932 Point Connection Game in a Circle   3 746 35.40
13
21
4038 Counting The Way of Bracket Replacement   7 435 38.74
26
21
4354 Snowflakes   1 810 24.93
9
21
4390 Cards shuffing   2 117 26.48
26
21
6852 Fish   4 180 29.77
26
21
7555 A - Crazy Rows   2 180 25.47
17
21
10463 COUNT PAREN   4 193 61.04
20
21
10522 K12-OE Numbers   7 228 49.15
21
21
10802 Sum of Tetranacci numbers   4 265 38.85
27
21
10968 LUCIFER Number   41 1416 64.76
21
21
11613 Aho-Corasick Trie   4 47 10.32
34
21
11909 C You and Me   4 87 45.25
21
21

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