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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
7184 Axis of Symmetry   1 71 18.88
26
26
9636 A Canvas Building   71 18.04
17
17
10608 Unique Strings   3 71 48.70
26
26
23875 Another Version of Inversion   7 71 32.13
23
23
25962 Essay   5 71 32.78
10
17
31234 Stressful Activities   2 71 41.00
12
1
32222 Ada and Panels   8 71 43.73
27
37
42487 The 3n + 1 problem   1 71 27.59
8
4
2129 Cake   70 21.59
4000 GALLUP   1 70 46.54
17
34
4586 Texas Trip   70 38.84
5142 A Pair of Graphs   1 70 54.23
17
17
9378 Landfill   70 42.44
9749 Cliques   70 28.68
10447 Contaminated City   70 13.74
10589 King   70 29.77
22275 Collecting Candies   4 70 28.34
21
30
22463 Smallest Number (medium)   9 70 21.04
29
25
28600 One Punch Man   4 70 34.27
17
17
40672 Where Proofless Assumption Fails   4 70 42.61
9
9
76 Editor Inverse   69 15.98
1671 Another Mathematical Problem   69 12.36
1
17
2153 Internet is Faulty   69 38.54
3208 Yet Another Longest Palindrome Problem   69 14.04
4156 PLAHTE   69 35.77
4528 Frog Wrestling   69 37.50
6478 Hamster Flight 2   2 69 33.61
17
34
6692 B - Esperanto Lessons   2 69 64.80
17
26
6999 Avoiding SOS Grids   69 10.71
7133 Garden 2005   1 69 23.42
8281 Combination Of Integers   1 69 29.49
17
17
8318 color the balls   69 42.80
50
50
9641 Factory of Bridges   1 69 26.01
17
34
9943 Isabella Message   1 69 24.22
17
17
10667 PASIJANS   69 48.52
13048 Escape from the Mines   2 69 24.27
23
23
13051 Wormtongues Mind   3 69 51.96
17
34
19293 Galaxy distances   69 25.85
26646 An easy Problem   8 69 55.22
13
21
27378 Legend of Heta   3 69 18.56
30
30
28742 Pizza Store and Gasoline   4 69 44.49
26
23
30737 Ada and Homework   5 69 25.40
34
28
31557 Halum and Candies   1 69 30.65
31893 Fibonacci and Easy GCD   7 69 28.76
23
32
32468 Frog Party   4 69 27.38
21
21
35956 Square Free Number   8 69 38.31
20
17
1722 Life, the Universe, and Everything II   68 28.49
2668 Polygon   1 68 20.45
26
34
3308 The Bridges of San Mochti   2 68 56.25
17
17
7709 Jumping Zippy   3 68 54.35
26
34

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