ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   11 89
31
26
32952 Ada and Football   2 45
50
42
32223 Ada and Lychees   2 8
50
50
28449 Ada and List   8 240
13
19
32856 Ada and Contact   1 17
30760 Ada and Travelling Salesman   14 123
23
30
15454 How to Handle the Fans   34 1329
11
11
5832 AND Rounds   47 1546
17
20
27379 Unique Code   19 96
20
20
61 Brackets   163 4452
18
20
14742 Building Bridges(HARD)   9 356
13
15
6168 Building Bridges   24 1437
11
16
23742 Dolan and Nephews   4 41
30
27
33019 Catering Contracts   6 71
22
26
12563 Halt The War   6 309
20
19
13015 Counting Primes   29 930
15
14
7296 Trees Again   4 155
21
30
9722 Insertion Sort   23 2995
12
12
5296 Air Combat   54
10628 Count on a tree   49 1443
32
32
10707 Count on a tree II   47 1163
32
34
11414 Combat on a tree   3 115
30
34
11482 Count on a trie   36
34
50
16245 Living with Courage   17 515
9
13
1108 Card Trick   57 1826
22
24
10810 Its a Murder!   47 2028
16
17
3978 Distance Query   41 995
22
20
3267 D-query   368 7504
19
23
9577 Dynamic Tree Connectivity   10 332
32
26
1684 Frequent values   104 3022
20
20
18185 Give Away   19 343
22
20
11985 Gao on a tree   17 382
31
27
12005 Grass Planting   6 222
37
17
1043 Can you answer these queries I   522 9785
25
24
1557 Can you answer these queries II   20 922
30
35
1716 Can you answer these queries III   200 7151
22
21
2713 Can you answer these queries IV   55 1817
21
21
2916 Can you answer these queries V   44 1665
22
23
4487 Can you answer these queries VI   21 845
34
30
6779 Can you answer these queries VII   12 482
39
25
19543 Can you answer these queries VIII   7 90
36
39
132 Help R2-D2!   11 705
21
19
12210 High and Low   60
8002 Horrible Queries   361 8934
19
18
18247 Arrangement Validity   10 172
17
23
18248 Maggu’s Solar Panels   1 39
34
34
26721 I LOVE Kd-TREES III   3 63
34
34
37375 Kingdom of Equality   2 4
34
34
3693 Maximum Sum   49 5470
20
19
8985 Line up   15 322
17
18

#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