list of classical problems

ID NAME CODE USERS ACC %
11676    Counting diff-pairs CPAIR2 210 21.52
6500    Counting Diameter DCOUNT 38 28.21
9547    Counting d-pairs DPAIR 138 30.45
34009    Counting Child CTTC 467 55.71
9570    Counting binary strings STRCOUNT 340 53.14
4407    Counting Arborescence DAGCNT 101 34.02
12943    Counting RIOI_3_2 82 46.93
26799    Counter-Smack COU 63 20.65
6805    Counter attack CATTACK 177 60.98
1704    Countdown CDOWN 306 25.66
11813    Count weighted paths CNTPATHS 23 40.00
21414    Count The Indexes 2 CNTINDX2 45 19.13
20673    Count The Indexes CNTINDX 253 29.60
27268    Count Subsets VECTAR5 222 45.65
10354    Count Strings CTSTRING 29 4.44
15556    Count right angle triangles IITKWPCC 53 24.70
16062    Count Primes SNGCP 45 25.20
10463    COUNT PAREN PAREN 194 60.61
35140    Count Pairs ILD18ACP 66 25.97
302    Count on Cantor CANTON 13081 61.26
11482    Count on a trie COT4 78 12.38
10707    Count on a tree II COT2 3559 19.62
10628    Count on a tree COT 2639 17.43
12964    Count on a treap COT5 10 30.99
2670    Count Minimum Spanning Trees MSTS 189 17.41
374    Count maximum matrices MATRIX 241 20.85
27303    Count Doubles CNTDO 629 34.48
8363    COSTLY CHESS CCHESS 1767 43.08
8980    Cost KOICOST 1264 29.19
28457    Correlations TAP2016C 94 29.40
264    Corporative Network CORNET 612 25.41
26314    Corn Headache CORN 362 35.04
3078    Copying DNA COPYDNA 48 21.17
43    Copying Books BOOKS1 2849 25.81
18165    Coprime Pairs NCOPRIME 15 16.67
15566    Coprime Again IITKWPCM 73 26.66
17624    Cooperation in geometry ! GCOOP 24 11.95
22532    Cool Problem COOLPROB 21 55.32
1875    Cool Numbers COOLNUMS 169 30.30
7023    Cookies KOLACI 19 28.80
3897    Convex Polygons CVXPOLY 124 30.86
760    Convex Hull 3D CH3D 126 41.31
236    Converting number formats ROMAN 154 40.00
3970    Convert to Decimal Base System MCONVERT 56 37.34
1285    Continuous Fractions Again CFRAC2 376 41.86
996    Continuous Fractions CFRAC 279 37.54
13398    Contest Hall Preparation CONHONPR 341 43.42
10447    Contaminated City CONTCITY 70 13.74
260    Containers CTAIN 298 46.22
17707    Constructible Regular Polygons POLCONST 511 55.88
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