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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
11813 Count weighted paths   1 16 51.52
21414 Count The Indexes 2   5 41 18.11
37
24
20673 Count The Indexes   7 242 29.20
17
30
27268 Count Subsets   19 213 44.96
10
22
10354 Count Strings   3 17 7.98
39
39
15556 Count right angle triangles   3 46 24.49
34
42
16062 Count Primes   -2 43 24.08
10463 COUNT PAREN   4 193 61.04
20
21
35140 Count Pairs   7 60 25.00
21
24
302 Count on Cantor   155 13014 61.30
13
14
11482 Count on a trie   60 23.63
42
50
10707 Count on a tree II   65 3082 19.10
31
31
10628 Count on a tree   63 2428 17.08
32
31
12964 Count on a treap   9 50.00
2670 Count Minimum Spanning Trees   4 180 17.18
28
39
374 Count maximum matrices   235 20.85
1
17
27303 Count Doubles   3 623 34.44
7
5
8363 COSTLY CHESS   23 1554 43.42
14
12
8980 Cost   47 1177 29.28
18
26
28457 Correlations   5 92 29.53
9
13
264 Corporative Network   14 598 25.06
17
19
26314 Corn Headache   7 356 35.51
8
9
3078 Copying DNA   44 23.53
43 Copying Books   45 2774 25.60
19
19
18165 Coprime Pairs   13 25.68
15566 Coprime Again   7 65 26.35
27
34
17624 Cooperation in geometry !   20 11.79
22532 Cool Problem   1 16 57.14
1
17
1875 Cool Numbers   6 165 30.29
30
34
7023 Cookies   19 36.00
3897 Convex Polygons   2 119 30.29
17
34
760 Convex Hull 3D   117 41.47
236 Converting number formats   149 41.15
1
1
3970 Convert to Decimal Base System   53 38.60
17
17
1285 Continuous Fractions Again   5 370 41.66
15
10
996 Continuous Fractions   1 275 37.40
9
9
13398 Contest Hall Preparation   1 336 43.25
15
12
10447 Contaminated City   69 13.63
260 Containers   3 292 46.05
17
14
17707 Constructible Regular Polygons   5 501 55.69
8
8
9936 Construct the Great Wall   9 41.67
21170 Constellation of the parallelogram   1 89 26.31
17
17
6650 Consecutive sequence   4 321 45.02
20
17
35669 Consecutive Letters   7 480 26.67
17
20
262 Connections   1 111 28.84
34
34
9459 Connecting three towns (variation)   1 52 24.60
17
34
4361 Connected Points   9 52.17
3006 Connect Line Segments   1 75 25.59
17
17
28460 Congratulations, Fidel!   1 38 13.82
17
17
10399 Conga line   -1 357 35.80
9
9

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