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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
8104 Friendly Knights   147 45.38
8100 Shifting Lights   2 227 31.13
17
17
8099 Crash´s number table   120 21.31
8097 Islands   69 46.30
8093 Sevenk Love Oimaster   1 495 22.83
26
26
8075 Sequence   3 57 27.73
39
39
8074 God of Number Theory   1 29 36.45
34
50
8073 The area of the union of circles   1 441 20.50
38
30
8064 Mixing Chemicals   1 155 22.85
17
34
8063 Dividing Stones   2 164 26.14
17
17
8062 Shopping Rush   71 63.59
8061 Christmas Play   57 7735 48.25
6
4
8059 Stocks Prediction   1 87 32.71
17
34
8058 Soccer Teams   1 139 25.22
17
26
8057 Square Free Factorization   16 1392 41.49
7
15
8056 Regex Edit Distance   2 32 40.62
34
42
8055 Playground   276 25.75
8044 Fantastic Discovery   3 306 42.60
14
14
8042 Possible Friends   16 1122 37.04
12
10
8004 Tree Topology   2 81 44.81
1
17
8002 Horrible Queries   396 10791 29.59
19
18
8001 Fibonacci Sum   179 6795 27.69
19
19
7976 Sum the Square   7 535 25.81
12
15
7975 Tri graphs   87 4835 29.09
11
10
7974 What’s Next   51 40842 35.13
2
2
7973 Sometimes, a penalty is good!   4 1196 29.41
5
5
7972 World of cubes   34 17.42
7971 The Cyber Traveling Salesman   1 33 36.20
34
17
7970 Jumping Beans   1 58 26.80
17
17
7969 A Knights’ Tale   3 76 23.33
17
17
7960 Multiplicative Palindrome   31 31.55
7947 Almost square factorisation   5 120 51.97
8
11
7946 Check Ramsey   2 8 39.13
9
9
7934 Operating System Problems (Task Scheduling)   2 137 56.53
17
17
7897 Skyline   13 879 32.38
12
27
7891 Fibonacci Sequence   97 30.21
34
34
7886 Boards (Hard)   35 34.59
7884 Crni   52 53.27
7882 Tabovi   2 329 49.68
50
50
7881 Ljutnja   3 637 24.24
34
21
7875 Miles and kilometers   6 602 46.79
9
9
7874 Calculator   25 22.30
7870 Invisible point   17 1650 42.78
4
18
7868 Join   1 17 47.56
34
17
7866 Regular expressions (Hard)   1 96 25.05
28
23
7864 Four Chips (Hard)   6 134 30.03
31
17
7862 Prisoner of Benda   23 34.25
7861 UFO   1 35 30.00
17
17
7860 Deal or No Deal   1 9 42.55
7859 Upper Right King (Hard)   3 165 36.85
26
34

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