ID NAME QUALITY USERS ACC % DIFFICULTY C I
28449 Ada and List   4 74
14
24
15454 How to Handle the Fans   15 813
12
14
5832 AND Rounds   19 993
19
24
27379 Unique Code   9 42
26
23
61 Brackets   82 3160
19
19
14742 Building Bridges(HARD)   7 243
15
15
6168 Building Bridges   12 951
11
15
23742 Dolan and Nephews   1 12
34
17
12563 Halt The War   4 172
26
23
13015 Counting Primes   16 550
18
17
7296 Trees Again   1 113
17
34
9722 Insertion Sort   9 2267
16
11
5296 Air Combat   51
10628 Count on a tree   24 854
32
31
10707 Count on a tree II   18 474
32
37
11414 Combat on a tree   2 71
28
34
11482 Count on a trie   28
34
50
16245 Living with Courage   13 308
10
15
1108 Card Trick   20 1422
19
22
10810 Its a Murder!   17 1544
19
22
3267 D-query   168 3842
19
24
9577 Dynamic Tree Connectivity   4 172
30
17
1684 Frequent values   50 2116
21
22
18185 Give Away   2 37
34
34
11985 Gao on a tree   6 135
30
21
12005 Grass Planting   1 107
34
17
1043 Can you answer these queries I   224 5968
24
24
1557 Can you answer these queries II   6 715
32
34
1716 Can you answer these queries III   89 4568
23
22
2713 Can you answer these queries IV   25 1017
23
20
2916 Can you answer these queries V   17 1171
20
26
4487 Can you answer these queries VI   8 594
35
32
6779 Can you answer these queries VII   2 350
38
28
19543 Can you answer these queries VIII   2 16
34
34
132 Help R2-D2!   3 541
30
30
12210 High and Low   55
8002 Horrible Queries   183 5252
20
20
18247 Arrangement Validity   3 99
13
17
18248 Maggu’s Solar Panels   33
26721 I LOVE Kd-TREES III   2 24
34
34
3693 Maximum Sum   18 3355
21
20
8985 Line up   7 205
17
22
20063 Large subsequence Problem   3 275
13
17
27337 LIS and tree   14
7259 Light Switching   40 2233
15
15
3946 K-th Number   69 1632
24
28
10596 Monkey and apples   3 78
17
1
3974 Another Tree Problem   5 580
17
17
7299 Multiples of 3   51 1993
20
18
709 The day of the competitors   15 1086
19
30

#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