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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9936 Construct the Great Wall   13 42.86
21170 Constellation of the parallelogram   1 92 26.64
17
17
6650 Consecutive sequence   4 324 45.08
20
17
35669 Consecutive Letters   8 589 26.83
17
20
262 Connections   1 114 28.93
34
34
9459 Connecting three towns (variation)   1 57 24.62
17
34
4361 Connected Points   13 34.78
3006 Connect Line Segments   1 79 24.38
17
17
28460 Congratulations, Fidel!   1 44 15.11
17
17
10399 Conga line   -1 369 36.43
9
9
666 Con-Junctions   32 1006 40.93
14
19
4008 Con Voi   9 57.69
25473 CompuTenis reloaded   3 245 35.24
4
4
5153 Compressed String   46 28.21
10 Complicated Expressions   11 1581 31.63
17
17
19292 Complicated Calculations   97 51.57
1
1
8843 Complete the Set   1 57 32.13
1
17
8 Complete the Sequence!   32 4521 36.74
16
18
1024 Complete Chess Boards   2 536 54.96
17
20
9382 Complan Carnival   41 34.62
10082 Comparing Answers   64 13.14
25176 Compare Substring   4 140 44.06
9
9
7783 Commuting Functions   49 25.94
2816 Common Subsequences   5 223 28.92
26
34
1728 Common Permutation   26 4201 46.71
6
6
45 Commedia dell Arte   2 251 32.28
5
26
15648 Commando   26 869 33.51
27
34
38331 Comet Number   7 89 33.12
7
15
8281 Combination Of Integers   1 69 29.49
17
17
11414 Combat on a tree   3 256 31.12
28
34
8551 Colours A, B, C, D   39 2165 21.23
10
21
13808 Colors   3 30 22.04
9
26
8425 Coloring Trees   10 324 30.46
20
31
20170 Coloring Segments   5 92 20.64
31
34
1483 Colorful Lights Party   13 10.20
12746 Colorful Circle (EASY)   5 484 20.91
28
23
26184 Colorful Beads   2 38 37.12
34
34
35674 COLORFUL ARRAY   65 1787 41.38
20
21
37390 Colored Development   5 33 42.05
21
30
8318 color the balls   69 42.80
50
50
36238 Color Play   12 210 24.30
10
20
3912 Color a tree   1 298 31.76
17
34
12960 Collision on Christmas Eve   1 47 20.95
12558 Collision Issue   73 36.33
17
1
26914 Collecting Mango   17 743 18.76
18
23
22275 Collecting Candies   4 70 28.34
21
30
7286 Collect Diamonds   1 20 25.93
26
26
515 Collatz   1 450 43.13
1
5
11373 Coke madness   37 3879 35.07
5
8
3885 Coins Game   92 5498 45.27
10
13

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