ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   2 30
34
26
32952 Ada and Football   2 9
32223 Ada and Lychees   1 4
50
50
28449 Ada and List   5 114
12
20
32856 Ada and Contact   10
30760 Ada and Travelling Salesman   5 29
26
34
15454 How to Handle the Fans   24 1017
11
11
5832 AND Rounds   25 1149
18
22
27379 Unique Code   14 75
20
20
61 Brackets   121 3565
18
20
14742 Building Bridges(HARD)   8 277
13
15
6168 Building Bridges   13 1053
11
15
23742 Dolan and Nephews   4 17
30
27
33019 Catering Contracts   4 26
21
17
12563 Halt The War   3 210
24
22
13015 Counting Primes   21 686
17
15
7296 Trees Again   2 119
17
26
9722 Insertion Sort   14 2435
12
12
5296 Air Combat   53
10628 Count on a tree   34 1024
32
32
10707 Count on a tree II   27 647
33
34
11414 Combat on a tree   2 83
28
34
11482 Count on a trie   30
34
50
16245 Living with Courage   14 367
10
15
1108 Card Trick   27 1507
20
22
10810 Its a Murder!   28 1692
17
20
3978 Distance Query   15 548
22
22
3267 D-query   234 4881
19
23
9577 Dynamic Tree Connectivity   4 201
30
17
1684 Frequent values   68 2425
20
21
18185 Give Away   6 74
30
27
11985 Gao on a tree   11 173
29
24
12005 Grass Planting   3 124
38
17
1043 Can you answer these queries I   304 7029
24
24
1557 Can you answer these queries II   10 784
31
35
1716 Can you answer these queries III   121 5319
22
21
2713 Can you answer these queries IV   28 1271
22
21
2916 Can you answer these queries V   27 1323
22
23
4487 Can you answer these queries VI   11 665
36
32
6779 Can you answer these queries VII   5 382
36
23
19543 Can you answer these queries VIII   3 28
34
34
132 Help R2-D2!   3 573
27
24
12210 High and Low   55
8002 Horrible Queries   244 6361
19
19
18247 Arrangement Validity   5 111
14
17
18248 Maggu’s Solar Panels   36
26721 I LOVE Kd-TREES III   3 46
34
34
3693 Maximum Sum   28 4079
21
20
8985 Line up   12 238
20
21
20063 Large subsequence Problem   6 316
13
19

#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