ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   12 201
29
23
32952 Ada and Football   3 221
45
39
32223 Ada and Lychees   3 15
42
26
28449 Ada and List   11 330
14
17
32856 Ada and Contact   2 30
34
34
30760 Ada and Travelling Salesman   18 185
23
29
15454 How to Handle the Fans   39 1526
12
11
5832 AND Rounds   51 1701
17
20
27379 Unique Code   22 129
21
21
61 Brackets   177 5499
19
20
14742 Building Bridges(HARD)   10 450
14
17
6168 Building Bridges   27 1659
11
17
23742 Dolan and Nephews   6 52
31
28
33019 Catering Contracts   7 89
23
27
12563 Halt The War   8 400
19
19
13015 Counting Primes   33 1450
16
14
7296 Trees Again   5 165
21
30
9722 Insertion Sort   28 4042
12
12
5296 Air Combat   -1 66
34
10628 Count on a tree   62 2556
32
31
10707 Count on a tree II   69 3446
31
30
11414 Combat on a tree   3 247
28
34
11482 Count on a trie   63
42
50
16245 Living with Courage   20 578
10
13
1108 Card Trick   68 2228
21
24
10810 Its a Murder!   55 2394
16
17
3978 Distance Query   70 1873
24
21
3267 D-query   460 13586
19
23
9577 Dynamic Tree Connectivity   13 639
29
28
1684 Frequent values   112 3944
20
21
18185 Give Away   34 1238
20
19
11985 Gao on a tree   26 845
28
27
12005 Grass Planting   11 578
29
19
1043 Can you answer these queries I   567 14151
25
24
1557 Can you answer these queries II   25 1745
28
35
1716 Can you answer these queries III   236 11841
22
21
2713 Can you answer these queries IV   60 4239
21
21
2916 Can you answer these queries V   52 2816
23
24
4487 Can you answer these queries VI   26 1338
34
28
6779 Can you answer these queries VII   19 1387
39
28
19543 Can you answer these queries VIII   8 212
37
35
132 Help R2-D2!   12 765
19
16
12210 High and Low   63
8002 Horrible Queries   398 11070
19
18
18247 Arrangement Validity   11 222
17
21
18248 Maggu’s Solar Panels   2 44
34
34
26721 I LOVE Kd-TREES III   4 81
34
34
37375 Kingdom of Equality   2 13
26
26
3693 Maximum Sum   59 6560
19
18
8985 Line up   19 409
16
17

#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