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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7809 Cow Photographs   2 173 36.01
26
26
7826 Tree Isomorphism   10 623 23.63
19
27
7851 Stacks of Zippy   1 19 16.41
34
34
7857 Tower Game (Hard)   62 14.63
34
34
7859 Upper Right King (Hard)   3 171 37.39
26
34
7860 Deal or No Deal   1 13 30.77
7861 UFO   1 41 30.21
17
17
7862 Prisoner of Benda   27 25.83
7864 Four Chips (Hard)   6 167 30.35
31
17
7866 Regular expressions (Hard)   1 140 27.33
28
23
7868 Join   1 21 47.31
34
17
7870 Invisible point   17 1671 42.96
4
18
7874 Calculator   29 24.36
7875 Miles and kilometers   6 612 47.06
9
9
7881 Ljutnja   3 641 24.32
34
21
7882 Tabovi   3 333 49.50
34
34
7884 Crni   60 55.93
7886 Boards (Hard)   40 37.14
7897 Skyline   13 949 32.61
12
27
7934 Operating System Problems (Task Scheduling)   2 142 53.65
17
17
7946 Check Ramsey   2 13 19.48
9
9
7947 Almost square factorisation   5 123 52.29
8
11
7960 Multiplicative Palindrome   34 27.78
7969 A Knights’ Tale   3 80 22.93
17
17
7970 Jumping Beans   1 63 27.96
17
17
7971 The Cyber Traveling Salesman   1 38 36.00
34
17
7972 World of cubes   37 16.88
7973 Sometimes, a penalty is good!   5 1207 29.59
6
8
7974 What’s Next   53 52174 35.43
2
2
7975 Tri graphs   87 4871 29.13
11
10
7976 Sum the Square   7 560 26.24
12
15
8001 Fibonacci Sum   182 6995 27.96
19
19
8002 Horrible Queries   399 11162 29.81
19
18
8004 Tree Topology   2 87 46.61
1
17
8055 Playground   280 25.94
8056 Regex Edit Distance   2 36 43.00
34
42
8057 Square Free Factorization   16 1446 41.59
7
15
8058 Soccer Teams   1 144 25.54
17
26
8059 Stocks Prediction   1 91 33.33
17
34
8061 Christmas Play   57 7793 48.26
6
4
8062 Shopping Rush   73 63.26
8063 Dividing Stones   2 167 26.30
17
17
8064 Mixing Chemicals   2 187 24.16
26
34
8073 The area of the union of circles   1 469 20.52
38
30
8074 God of Number Theory   1 35 37.10
34
50
8075 Sequence   3 59 26.63
39
39
8093 Sevenk Love Oimaster   2 580 24.55
28
28
8097 Islands   73 46.82
8100 Shifting Lights   2 229 31.20
17
17
8104 Friendly Knights   151 45.76

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