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list of classical problems (unsolved)


ID NAME QUALITY USERS ACC % DIFFICULTY C I
9340 Arbitrage   37 1951 39.51
12
17
28304 Ada and Teams   24 890 39.52
15
15
9973 Problem Set Score   4 918 39.55
12
17
1437 Longest path in a tree   407 20181 39.56
14
15
6818 Capital City   95 2972 39.56
20
20
13469 FOREVER ALONE   7 95 39.58
24
24
27093 Branch Assignment   29 39.58
13789 Loving Power   4 118 39.59
12
23
9939 Eliminate the Conflict   1 50 39.59
17
17
1002 Uncle Jack   13 2970 39.60
9
8
6043 The Game   13 944 39.60
3
19
17789 Space Bridges   27 39.60
5522 Buy Your House   17 39.62
9387 Special String   11 1113 39.63
6
19
2853 Decode the Strings   5 432 39.64
15
17
25893 Longest Perfect Increasing Subsequence   39 701 39.65
8
12
7168 Termites strike back   2 19 39.66
17
34
12600 Blade Master   1 16 39.66
34
17
25780 Decreasing Number of Visible Box   18 253 39.68
16
16
11564 E 23 Stairs pattern   1 140 39.70
17
23
14956 Submerging Islands   107 4727 39.71
13
14
15256 Partition function (EASY)   8 103 39.73
22
27
60 The Gordian Dance   3 238 39.74
12
45
676 Sorting is not easy   9 542 39.75
19
32
13500 Discord is at it again   2 36 39.78
34
34
187 Flat broken lines   2 105 39.78
9
17
7230 Garbage Collection   1 159 39.80
17
17
34705 Secret Recipe   10 158 39.82
12
11
1683 Expressions   359 39.87
1
17
13384 Nice Binary Trees   26 1840 39.88
9
13
1003 Little Quilt   3 171 39.89
21
11
3543 Matrica   56 39.90
7759 Hyperactive Girl   1 111 39.94
26
26
6695 E - Publish of Perish   1 714 39.98
236 Converting number formats   154 40.00
1
1
3965 Minimax Triangulation   60 40.00
4413 Gem   3 99 40.00
23
12
10538 Derp   61 40.00
11813 Count weighted paths   1 23 40.00
14924 King Graffs Tolls   4 35 40.00
26
26
17124 Chess Board of Avengers   1 37 40.00
17
17
5449 Seinfeld   189 9560 40.07
8
11
12560 External Falling Objects   2 60 40.08
26
17
263 Period   57 3063 40.09
12
17
8434 Kolica   2 68 40.10
34
17
13041 The Black Riders   6 196 40.10
17
34
8545 Subset sum   45 1943 40.12
12
16
10141 STRAZA   49 40.13
34
17
10841 Supplying the Suppliers   1 20 40.13
23776 K-Query Online   86 2060 40.13
20
23

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