ID NAME QUALITY USERS ACC % DIFFICULTY C I
28449 Ada and List   4 52
23
34
15454 How to Handle the Fans   14 727
12
15
5832 AND Rounds   18 940
19
24
27379 Unique Code   8 33
23
26
61 Brackets   71 3003
18
19
14742 Building Bridges(HARD)   6 226
17
17
6168 Building Bridges   12 903
11
16
23742 Dolan and Nephews   1 11
34
17
12563 Halt The War   4 162
26
23
13015 Counting Primes   16 507
16
15
7296 Trees Again   1 109
17
34
9722 Insertion Sort   7 2228
16
11
5296 Air Combat   51
10628 Count on a tree   17 770
30
32
10707 Count on a tree II   14 421
34
38
11414 Combat on a tree   2 70
28
34
11482 Count on a trie   28
34
50
16245 Living with Courage   11 281
9
15
1108 Card Trick   17 1359
18
22
10810 Its a Murder!   13 1487
17
21
3267 D-query   135 3459
18
23
9577 Dynamic Tree Connectivity   3 161
34
13
1684 Frequent values   47 2018
21
22
18185 Give Away   2 37
34
34
11985 Gao on a tree   5 128
30
21
12005 Grass Planting   1 101
34
17
1043 Can you answer these queries I   191 5605
24
24
1557 Can you answer these queries II   6 700
32
34
1716 Can you answer these queries III   79 4308
23
22
2713 Can you answer these queries IV   22 944
25
21
2916 Can you answer these queries V   15 1119
19
27
4487 Can you answer these queries VI   7 570
35
32
6779 Can you answer these queries VII   2 344
38
28
19543 Can you answer these queries VIII   2 16
34
34
132 Help R2-D2!   3 535
30
30
12210 High and Low   54
8002 Horrible Queries   159 4890
20
20
18247 Arrangement Validity   3 95
13
17
18248 Maggu’s Solar Panels   33
26721 I LOVE Kd-TREES III   2 20
34
34
3693 Maximum Sum   16 3161
20
20
8985 Line up   5 193
17
21
20063 Large subsequence Problem   3 256
13
17
27337 LIS and tree   13
7259 Light Switching   34 2140
15
15
3946 K-th Number   49 1380
25
28
10596 Monkey and apples   3 74
17
1
3974 Another Tree Problem   4 573
17
17
7299 Multiples of 3   43 1874
20
18
709 The day of the competitors   13 1047
17
29

#tree

Tree is a data structure that simulates a hierarchical tree structure

https://en.wikipedia.org/wiki/Tree_(data_structure) https://en.wikibooks.org/wiki/Data_Structures/Trees http://www.i-programmer.info/babbages-bag/477-trees.html