ID NAME QUALITY USERS ACC % DIFFICULTY C I
28449 Ada and List   4 60
14
24
15454 How to Handle the Fans   14 751
12
15
5832 AND Rounds   18 946
19
24
27379 Unique Code   8 36
24
24
61 Brackets   76 3034
19
19
14742 Building Bridges(HARD)   6 232
17
17
6168 Building Bridges   12 914
11
16
23742 Dolan and Nephews   1 11
34
17
12563 Halt The War   4 162
26
23
13015 Counting Primes   16 513
16
15
7296 Trees Again   1 110
17
34
9722 Insertion Sort   7 2240
16
11
5296 Air Combat   51
10628 Count on a tree   20 785
30
31
10707 Count on a tree II   17 445
32
37
11414 Combat on a tree   2 70
28
34
11482 Count on a trie   28
34
50
16245 Living with Courage   11 284
9
15
1108 Card Trick   18 1378
20
23
10810 Its a Murder!   14 1498
17
21
3267 D-query   143 3542
18
24
9577 Dynamic Tree Connectivity   3 165
34
13
1684 Frequent values   47 2036
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   196 5675
24
25
1557 Can you answer these queries II   6 703
32
34
1716 Can you answer these queries III   82 4350
23
22
2713 Can you answer these queries IV   22 957
25
21
2916 Can you answer these queries V   15 1126
19
27
4487 Can you answer these queries VI   7 575
35
32
6779 Can you answer these queries VII   2 345
38
28
19543 Can you answer these queries VIII   2 16
34
34
132 Help R2-D2!   3 537
30
30
12210 High and Low   54
8002 Horrible Queries   167 4957
20
19
18247 Arrangement Validity   3 97
13
17
18248 Maggu’s Solar Panels   33
26721 I LOVE Kd-TREES III   2 20
34
34
3693 Maximum Sum   17 3202
21
20
8985 Line up   6 197
17
20
20063 Large subsequence Problem   3 258
13
17
27337 LIS and tree   13
7259 Light Switching   35 2165
15
15
3946 K-th Number   50 1414
25
28
10596 Monkey and apples   3 75
17
1
3974 Another Tree Problem   4 574
17
17
7299 Multiples of 3   44 1900
20
18
709 The day of the competitors   14 1060
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