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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
8839 Longest Common Difference Subsequence   3 75 25.06
34
39
3109 Longest Common Prefix   4 396 25.51
38
34
12076 Longest Common Subsequence   6 153 4.71
45
45
1811 Longest Common Substring   37 3532 22.38
20
19
10570 Longest Common Substring   5 922 30.41
31
32
1812 Longest Common Substring II   16 2102 18.39
30
28
34624 Longest palindrome with no adjacent duplicates   2 95 31.59
28
17
1437 Longest path in a tree   407 20182 39.56
14
15
25893 Longest Perfect Increasing Subsequence   39 701 39.65
8
12
744 Longest Permutation   3 619 19.85
15
19
27097 Longest Rivers   9 16.46
8550 Longest Square Factor   5 75 18.47
21
37
8720 Looks like Nim - but it is not   3 92 21.45
6
28
14697 Loop Expectation   11 675 49.41
14
22
16409 Lopov   5 321 28.79
11
14
34542 Lord of Light   312 36.00
9
1
26193 Lost and survived   46 847 35.48
16
12
5010 Lost in Madrid   1 194 31.49
1
1
35435 love and traffic   7 55 52.25
4
5
35145 Love Guru   5 118 23.11
12
12
18180 Love Story 1   13 1142 26.38
9
6
20050 Love Story 2   1 89 38.29
9
9
34681 Lovely Kitty   1 36 23.58
17
23
13789 Loving Power   4 118 39.59
12
23
14932 Lowest Common Ancestor   234 7944 29.25
15
15
8971 LQDNUMBERS   36 35.04
3831 Lubenica   1 204 42.50
17
17
36166 Lucifer and Magical Substrings   14 105 46.38
12
13
10968 LUCIFER Number   45 1630 62.38
21
22
11334 Lucifer Sort   7 1.14
34
3920 Lucius Dungeon   17 1752 38.84
17
12
16483 Lucky Cities   2 37 18.72
17
26
7301 Lucky Controller   11 32.14
3639 Lucky Numbers   7 733 34.15
13
9
34357 Ludic Numbers (hard)   2 4 14.63
34356 Ludic Numbers (medium)   5 61 30.32
36
39
15241 Luis Quest   2 1250 60.67
3
6
30454 Luke vs. Darth Vader   15 225 22.33
16
15
25528 LUTRIJA   1 8 11.76
17
17
3969 M&M Game   12 1321 42.35
4
17
19335 Machau vs Maggu   10 12.82
17
1
36122 Machine Cooling   3 51 61.54
1
9
36145 Machine Cooling II   3 38 18.87
17
17
18186 Machine Mayhem   4 15 28.17
34
37
12889 MAD   2 164 21.01
1
1
12251 Mad Hulk   12 15.00
13508 Madotsuki Pattern   14 44.12
4988 Madrids One Way Streets   5 201 29.00
15
15
9213 Mafia   2 53 23.93
17
26
18283 Maggu and Cuteness of Strings   6 171 40.17
13
13

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