ID NAME QUALITY USERS ACC % DIFFICULTY C I
28449 Ada and List   5 90
12
20
15454 How to Handle the Fans   16 852
11
13
5832 AND Rounds   21 1035
19
24
27379 Unique Code   12 50
21
21
61 Brackets   94 3281
19
19
14742 Building Bridges(HARD)   7 247
13
15
6168 Building Bridges   12 981
11
15
23742 Dolan and Nephews   3 15
30
26
12563 Halt The War   3 181
24
22
13015 Counting Primes   19 573
18
17
7296 Trees Again   2 114
17
26
9722 Insertion Sort   11 2329
15
11
5296 Air Combat   51
10628 Count on a tree   24 899
32
32
10707 Count on a tree II   21 513
32
34
11414 Combat on a tree   2 71
28
34
11482 Count on a trie   28
34
50
16245 Living with Courage   13 326
10
15
1108 Card Trick   21 1437
19
22
10810 Its a Murder!   20 1561
18
22
3267 D-query   178 4072
19
24
9577 Dynamic Tree Connectivity   4 175
30
17
1684 Frequent values   54 2180
21
22
18185 Give Away   2 38
34
34
11985 Gao on a tree   8 148
31
24
12005 Grass Planting   3 110
38
17
1043 Can you answer these queries I   239 6154
24
25
1557 Can you answer these queries II   7 726
32
35
1716 Can you answer these queries III   97 4711
23
22
2713 Can you answer these queries IV   24 1056
24
20
2916 Can you answer these queries V   18 1211
20
26
4487 Can you answer these queries VI   8 604
35
32
6779 Can you answer these queries VII   2 353
38
28
19543 Can you answer these queries VIII   2 16
34
34
132 Help R2-D2!   3 545
30
30
12210 High and Low   55
8002 Horrible Queries   191 5475
20
20
18247 Arrangement Validity   5 101
14
17
18248 Maggu’s Solar Panels   36
26721 I LOVE Kd-TREES III   3 29
34
34
3693 Maximum Sum   19 3499
22
21
8985 Line up   7 209
17
22
20063 Large subsequence Problem   3 277
13
17
27337 LIS and tree   14
7259 Light Switching   41 2292
15
15
3946 K-th Number   75 1726
25
29
10596 Monkey and apples   4 87
26
9
3974 Another Tree Problem   5 585
17
17
7299 Multiples of 3   52 2063
20
17
709 The day of the competitors   15 1102
17
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