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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
2005 Minus Operation   8 306 33.42
30
30
2728 Breaking in   8 300 26.65
30
19
1812 Longest Common Substring II   16 2055 18.30
30
28
2371 Another Longest Increasing Subsequence Problem   18 828 13.59
30
33
7 The Bulk!   6 530 15.02
30
24
67 Cutting out   2 301 40.77
30
27
413 Word Puzzles   4 377 18.16
30
14
1776 DNA Laboratory   3 112 11.06
30
21
3882 Cijevi   5 260 38.04
30
14
3983 Right Triangle Counting   3 190 17.72
30
21
12125 Fibonacci With a Square Root   8 150 33.38
30
30
12579 Search Insert Delete   4 100 10.35
30
11
14893 Good Inflation   17 194 28.48
30
34
16809 Estimation   2 167 9.92
30
17
19686 Mining Camps   3 80 10.92
30
21
21396 Taklu Kuddus   3 106 8.17
30
24
22784 Pythagorean Triple Counting   4 38 52.67
30
17
28079 Maximum Child Sum   6 104 22.97
30
30
36718 Fashionable self-describing numbers   6 51 17.33
30
34
20644 Zero Query   17 755 19.43
31
27
10707 Count on a tree II   69 3481 19.51
31
30
286 Selfish Cities   1 706 38.94
31
31
416 Divisibility by 15   5 1025 15.50
31
26
4180 Pizza Location   2 576 18.59
31
17
19320 Draw Skyline Graph   2 106 19.73
31
26
20170 Coloring Segments   5 91 20.51
31
34
23742 Dolan and Nephews   6 52 37.97
31
28
31036 Ada and Mulberry   6 121 12.80
31
28
58 Crime at Piccadily Circus   3 650 14.02
31
21
7864 Four Chips (Hard)   6 159 30.11
31
17
10570 Longest Common Substring   5 893 30.11
31
32
11695 A Summatory (HARD)   6 100 30.40
31
29
21643 Unhappy Numbers   7 51 37.22
31
31
31591 All in One   8 109 8.90
31
26
32577 Ada and Terramorphing   11 272 12.04
31
24
34373 Clickbait   8 24 33.33
32
19
36671 Bipartite Permutation (Hard)   6 52 16.43
32
34
9066 Sum of Distinct Numbers   26 354 14.64
32
32
8406 Temple Queues   14 295 19.32
32
33
10628 Count on a tree   62 2580 17.36
32
31
7232 Inversion Sort   5 168 16.42
32
23
375 Query on a tree   166 5828 17.57
33
27
13 Hotline   2 212 16.24
34
23
85 Dice Contest   48 21.49
34
34
88 Which is Next   1 131 19.59
34
34
99 Bus   187 22.18
34
17
140 The Loner   159 21.44
34
17
145 Aliens   2 429 29.91
34
42
149 Fencing in the Sheep   3 101 12.97
34
17
202 Rockets   -1 58 12.17
34
34

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