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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
4176 A Knightly Pursuit   2 67 29.28
26
17
4593 Arithmetic sequence   1 67 9.55
34
17
5115 Two "Ways"   67 15.62
5530 Math with Bases (Easy)   2 67 24.73
26
9
6831 Two Ball Game   67 28.44
7628 Mathematics   2 67 29.05
17
17
8429 Array Sorting   67 17.23
8930 Party!   3 67 19.63
17
34
12210 High and Low   67 13.11
12969 To inifinity and Beyond   1 67 25.82
34
17
14334 Evil Overlord Cypher   1 67 27.18
9
17
14761 Almost-isosceles Pythagorean triple (easy)   1 67 41.93
14978 Homemade Asteroids   2 67 25.67
17
17
21193 Adjusting Ducks   3 67 31.82
20
27
22560 Valid Path   6 67 35.74
6
8
28479 Single substitutions   4 67 30.27
17
17
32878 N..K..Divide   3 67 21.74
26
34
34537 Prime Lover Finding   7 67 29.43
28
24
35140 Count Pairs   7 67 26.12
21
24
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
8434 Kolica   2 68 40.10
34
17
16179 Platinum Relic!   1 68 22.62
6
6
21460 Tresi and Girls   3 68 22.78
17
21
25785 Ecstasy   3 68 32.00
1
1
27261 Matrices with XOR property   8 68 20.91
20
24
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

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