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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7741 Sequence   7 814 30.33
11
23
7742 Onotole needs your help   138 10152 41.10
4
11
7745 Bingo!   758 38.89
17
1
7746 Cocircular Points   63 16.78
42
17
7753 Happy Numbers II   3 651 15.95
23
17
7757 Flowers Flourish from France   12 3176 53.08
7
2
7758 Growing Strings   176 32.39
7759 Hyperactive Girl   1 111 39.94
26
26
7760 Kids’ Wishes   1 95 31.93
34
1
7761 Jollo   3 398 40.15
17
9
7762 Electric Needs   1 25 38.00
34
17
7763 Ingenious Metro   83 67.02
7772 Help a researcher   62 48.95
7777 National Treasure   35 31.50
7778 Land Division   1 40 43.50
17
17
7779 Stock Chase   76 30.19
17
17
7782 Largest Labeled Common Ancestor   1 208 57.44
7783 Commuting Functions   49 25.94
7804 Defense of a Kingdom   41 5231 25.17
10
12
7805 Kitchen Robot   3 90 32.24
9
9
7807 The Lucky Prisoner   27 9.84
7809 Cow Photographs   2 173 36.01
26
26
7826 Tree Isomorphism   10 621 23.64
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
7891 Fibonacci Sequence   102 30.56
34
34
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

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