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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2670 Count Minimum Spanning Trees   4 180 17.18
28
39
12964 Count on a treap   9 50.00
10628 Count on a tree   63 2413 17.07
32
31
10707 Count on a tree II   65 3054 19.05
31
31
11482 Count on a trie   60 23.63
42
50
302 Count on Cantor   155 13010 61.30
13
14
35140 Count Pairs   6 59 24.89
17
21
10463 COUNT PAREN   4 193 61.04
20
21
16062 Count Primes   -2 43 24.08
15556 Count right angle triangles   3 46 24.49
34
42
10354 Count Strings   3 17 7.98
39
39
27268 Count Subsets   19 213 44.96
10
22
20673 Count The Indexes   7 242 29.20
17
30
21414 Count The Indexes 2   5 41 18.11
37
24
11813 Count weighted paths   1 16 51.52
1704 Countdown   298 25.14
26
9
6805 Counter attack   3 175 60.72
17
17
26799 Counter-Smack   3 56 19.96
12
23
12943 Counting   5 79 47.71
8
30
4407 Counting Arborescence   100 34.02
9570 Counting binary strings   7 338 53.04
17
24
34009 Counting Child   18 416 54.85
7
9
9547 Counting d-pairs   2 135 30.67
23
28
6500 Counting Diameter   36 40.78
11676 Counting diff-pairs   14 184 22.60
24
26
3928 Counting Digits   7 1162 44.89
22
26
26073 Counting Divisors   3 121 24.86
39
34
20174 Counting Divisors (cube)   6 359 34.78
17
41
34096 Counting Divisors (general)   4 324 35.08
40
43
20173 Counting Divisors (square)   6 434 21.70
26
36
4411 Counting Expressions   29 42.47
4478 Counting Expressions II   14 35.29
10605 Counting Formations   2 14 56.41
34
34
4420 Counting Graphs   58 34.93
15429 Counting Ids   15 1925 49.88
5
5
4882 Counting in a DAG   6 170 11.96
17
26
861 Counting inversions   7 462 20.04
34
29
4329 Counting K-Rectangle   4 387 30.01
20
28
13444 Counting Lucky Numbers   3 171 30.10
17
17
28599 Counting Magical Permutatitons   7 57 27.85
17
29
5542 Counting pairs   4 131 26.46
39
36
20872 Counting Pairwise Coprime Triples   1 47 53.73
34
34
7186 Counting Pascal   2 125 29.11
17
17
13015 Counting Primes   33 1377 22.04
16
14
19913 Counting Pythagorean Triples   3 16 14.23
26
42
2450 Counting Rabbits   8 1216 34.01
10
12
2150 Counting Subsequences   13 1025 29.52
9
13
8335 Counting the teams   1 23 45.61
34
50
4038 Counting The Way of Bracket Replacement   7 437 38.79
26
21
1724 Counting Triangles   69 13086 34.04
7
21

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