ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   12 173
30
25
32952 Ada and Football   2 190
50
42
32223 Ada and Lychees   3 14
42
26
28449 Ada and List   10 303
14
17
32856 Ada and Contact   1 25
30760 Ada and Travelling Salesman   18 174
23
29
15454 How to Handle the Fans   39 1504
12
11
5832 AND Rounds   51 1688
17
20
27379 Unique Code   21 122
20
20
61 Brackets   174 5369
19
20
14742 Building Bridges(HARD)   10 443
14
17
6168 Building Bridges   27 1636
11
17
23742 Dolan and Nephews   5 48
30
27
33019 Catering Contracts   7 86
23
27
12563 Halt The War   8 381
19
19
13015 Counting Primes   32 1293
16
14
7296 Trees Again   5 166
21
30
9722 Insertion Sort   28 3772
12
12
5296 Air Combat   -1 64
34
10628 Count on a tree   61 2249
32
32
10707 Count on a tree II   62 2733
31
31
11414 Combat on a tree   2 211
30
34
11482 Count on a trie   46
42
50
16245 Living with Courage   18 564
9
13
1108 Card Trick   68 2166
21
24
10810 Its a Murder!   55 2347
16
17
3978 Distance Query   68 1625
24
21
3267 D-query   450 12115
19
23
9577 Dynamic Tree Connectivity   12 518
29
28
1684 Frequent values   111 3724
20
21
18185 Give Away   31 974
20
18
11985 Gao on a tree   25 699
27
27
12005 Grass Planting   9 481
32
17
1043 Can you answer these queries I   563 13206
25
24
1557 Can you answer these queries II   23 1484
30
36
1716 Can you answer these queries III   232 10581
22
21
2713 Can you answer these queries IV   59 3594
21
21
2916 Can you answer these queries V   51 2519
23
23
4487 Can you answer these queries VI   25 1202
34
28
6779 Can you answer these queries VII   16 1133
39
28
19543 Can you answer these queries VIII   8 181
37
35
132 Help R2-D2!   12 754
19
16
12210 High and Low   61
8002 Horrible Queries   394 10657
19
18
18247 Arrangement Validity   11 211
17
21
18248 Maggu’s Solar Panels   1 43
34
34
26721 I LOVE Kd-TREES III   4 78
34
34
37375 Kingdom of Equality   2 10
26
26
3693 Maximum Sum   57 6329
19
18
8985 Line up   19 386
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