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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
61 Brackets   178 5548 24.46
19
20
132 Help R2-D2!   13 771 29.70
19
17
227 Ordering the Soldiers   22 1478 33.31
21
23
375 Query on a tree   167 5902 17.61
33
27
709 The day of the competitors   38 1566 28.81
17
27
913 Query on a tree II   118 4790 20.97
23
21
1043 Can you answer these queries I   569 14332 19.05
25
24
1108 Card Trick   68 2247 50.40
21
24
1435 Vertex Cover   129 4159 34.36
15
18
1487 Query on a tree III   1 588 18.63
17
12
1557 Can you answer these queries II   26 1793 25.06
28
35
1678 Royal Treasury   -1 74 11.36
34
1
1684 Frequent values   112 3997 27.66
20
21
1716 Can you answer these queries III   236 12147 43.83
22
21
2666 Query on a tree IV   4 746 13.54
38
34
2713 Can you answer these queries IV   60 4393 17.76
21
21
2916 Can you answer these queries V   52 2891 26.71
23
24
2939 Query on a tree V   79 1925 28.78
29
30
3267 D-query   461 13992 28.60
19
23
3273 Order statistic set   160 3456 26.93
22
20
3693 Maximum Sum   59 6628 42.45
19
18
3946 K-th Number   245 5841 35.44
25
27
3974 Another Tree Problem   7 647 32.53
15
23
3978 Distance Query   71 1953 33.24
24
21
4487 Can you answer these queries VI   27 1367 23.62
34
28
5296 Air Combat   -1 71 15.71
34
5832 AND Rounds   51 1702 24.89
17
20
6168 Building Bridges   27 1665 25.98
11
17
6169 Standing Sequence   2 122 28.60
34
39
6294 Yodaness Level   74 3576 49.31
15
16
6717 Two Paths   9 231 17.81
34
36
6779 Can you answer these queries VII   21 1454 19.42
38
28
7259 Light Switching   102 4701 34.35
16
15
7296 Trees Again   5 168 47.65
21
30
7299 Multiples of 3   121 3783 23.64
20
17
8002 Horrible Queries   399 11163 29.81
19
18
8406 Temple Queues   14 296 19.34
32
33
8952 Catapult that ball   34 3213 26.34
12
12
8985 Line up   19 419 51.82
16
17
9577 Dynamic Tree Connectivity   13 656 28.77
29
28
9722 Insertion Sort   28 4083 31.42
12
12
10596 Monkey and apples   6 164 17.07
30
17
10628 Count on a tree   63 2640 17.44
32
31
10707 Count on a tree II   70 3561 19.62
31
30
10810 Its a Murder!   56 2405 22.17
16
16
11414 Combat on a tree   3 256 31.12
28
34
11482 Count on a trie   78 12.38
42
50
11772 Negative Score   67 3451 34.17
10
11
11840 Sum of Squares with Segment Tree   55 2087 51.04
23
19
11985 Gao on a tree   26 874 15.24
28
27

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