ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   12 194
29
23
32952 Ada and Football   3 214
45
39
32223 Ada and Lychees   3 14
42
26
28449 Ada and List   11 315
14
17
32856 Ada and Contact   2 27
34
34
30760 Ada and Travelling Salesman   18 184
23
29
15454 How to Handle the Fans   39 1521
12
11
5832 AND Rounds   51 1695
17
20
27379 Unique Code   22 127
21
21
61 Brackets   177 5463
19
20
14742 Building Bridges(HARD)   10 449
14
17
6168 Building Bridges   27 1649
11
17
23742 Dolan and Nephews   6 48
31
28
33019 Catering Contracts   7 87
23
27
12563 Halt The War   8 393
19
19
13015 Counting Primes   33 1406
16
14
7296 Trees Again   5 166
21
30
9722 Insertion Sort   28 3953
12
12
5296 Air Combat   -1 64
34
10628 Count on a tree   63 2470
32
31
10707 Count on a tree II   68 3195
31
30
11414 Combat on a tree   2 240
30
34
11482 Count on a trie   60
42
50
16245 Living with Courage   20 569
10
13
1108 Card Trick   68 2207
21
24
10810 Its a Murder!   55 2387
16
17
3978 Distance Query   70 1782
24
21
3267 D-query   456 13206
19
23
9577 Dynamic Tree Connectivity   12 593
29
28
1684 Frequent values   111 3894
20
21
18185 Give Away   33 1158
20
19
11985 Gao on a tree   26 811
28
27
12005 Grass Planting   11 552
29
19
1043 Can you answer these queries I   567 13888
25
24
1557 Can you answer these queries II   25 1651
28
35
1716 Can you answer these queries III   235 11503
22
21
2713 Can you answer these queries IV   60 4068
21
21
2916 Can you answer these queries V   51 2725
23
23
4487 Can you answer these queries VI   26 1298
34
28
6779 Can you answer these queries VII   18 1315
38
28
19543 Can you answer these queries VIII   8 203
37
35
132 Help R2-D2!   12 763
19
16
12210 High and Low   61
8002 Horrible Queries   397 10945
19
18
18247 Arrangement Validity   11 216
17
21
18248 Maggu’s Solar Panels   2 43
34
34
26721 I LOVE Kd-TREES III   4 80
34
34
37375 Kingdom of Equality   2 11
26
26
3693 Maximum Sum   58 6503
19
18
8985 Line up   19 401
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