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list of classical problems


ID NAME QUALITY USERS ACC % DIFFICULTY C I
61 Brackets   174 5381 24.42
19
20
132 Help R2-D2!   12 754 29.45
19
16
227 Ordering the Soldiers   21 1442 33.16
21
23
375 Query on a tree   164 5533 17.56
33
27
709 The day of the competitors   38 1545 28.99
17
27
913 Query on a tree II   115 4358 20.67
24
21
1043 Can you answer these queries I   564 13273 18.45
25
24
1108 Card Trick   68 2170 50.37
21
24
1435 Vertex Cover   128 4014 34.07
15
18
1487 Query on a tree III   517 16.98
1557 Can you answer these queries II   23 1504 23.98
30
36
1678 Royal Treasury   70 11.71
1684 Frequent values   111 3745 27.69
20
21
1716 Can you answer these queries III   232 10655 42.72
22
21
2666 Query on a tree IV   5 668 13.66
38
34
2713 Can you answer these queries IV   59 3633 16.90
21
21
2916 Can you answer these queries V   51 2534 25.85
23
23
2939 Query on a tree V   75 1714 27.89
29
30
3267 D-query   450 12229 27.55
19
23
3273 Order statistic set   157 3089 25.75
22
20
3693 Maximum Sum   57 6350 42.04
19
18
3946 K-th Number   237 5049 34.34
25
27
3974 Another Tree Problem   7 643 32.56
17
23
3978 Distance Query   68 1634 32.10
24
21
4487 Can you answer these queries VI   25 1207 22.70
34
28
5296 Air Combat   -1 64 14.85
34
5832 AND Rounds   51 1688 24.83
17
20
6168 Building Bridges   27 1637 26.01
11
17
6169 Standing Sequence   2 118 28.49
34
39
6294 Yodaness Level   74 3512 49.20
15
16
6717 Two Paths   8 212 17.29
34
36
6779 Can you answer these queries VII   16 1149 19.28
39
28
7259 Light Switching   102 4236 32.69
16
15
7296 Trees Again   5 166 50.53
21
30
7299 Multiples of 3   120 3664 23.35
20
17
8002 Horrible Queries   396 10698 29.43
19
18
8406 Temple Queues   14 288 19.63
31
33
8952 Catapult that ball   36 2743 26.26
12
12
8985 Line up   19 387 50.89
16
17
9577 Dynamic Tree Connectivity   12 537 27.92
29
28
9722 Insertion Sort   28 3787 30.68
12
12
10596 Monkey and apples   6 162 17.43
30
17
10628 Count on a tree   61 2275 16.91
32
32
10707 Count on a tree II   62 2791 18.97
31
31
10810 Its a Murder!   55 2351 22.03
16
17
11414 Combat on a tree   2 212 30.62
30
34
11482 Count on a trie   46 29.66
42
50
11772 Negative Score   67 3366 34.29
10
11
11840 Sum of Squares with Segment Tree   53 2006 50.94
23
18
11985 Gao on a tree   25 703 15.20
27
27

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