ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   2 23
34
26
32952 Ada and Football   2 9
32223 Ada and Lychees   1 3
50
50
28449 Ada and List   5 103
12
20
32856 Ada and Contact   10
30760 Ada and Travelling Salesman   3 13
28
34
15454 How to Handle the Fans   19 931
10
12
5832 AND Rounds   23 1091
19
23
27379 Unique Code   14 59
20
20
61 Brackets   110 3425
19
20
14742 Building Bridges(HARD)   7 253
13
15
6168 Building Bridges   12 1004
11
15
23742 Dolan and Nephews   4 16
30
27
33019 Catering Contracts   4 23
21
17
12563 Halt The War   3 196
24
22
13015 Counting Primes   21 620
17
16
7296 Trees Again   2 118
17
26
9722 Insertion Sort   13 2371
14
11
5296 Air Combat   52
10628 Count on a tree   29 956
33
32
10707 Count on a tree II   26 564
33
35
11414 Combat on a tree   2 78
28
34
11482 Count on a trie   28
34
50
16245 Living with Courage   14 351
10
15
1108 Card Trick   24 1464
21
22
10810 Its a Murder!   24 1617
17
20
3978 Distance Query   14 512
21
21
3267 D-query   208 4434
19
24
9577 Dynamic Tree Connectivity   4 193
30
17
1684 Frequent values   61 2304
21
21
18185 Give Away   2 52
34
34
11985 Gao on a tree   9 162
32
26
12005 Grass Planting   3 119
38
17
1043 Can you answer these queries I   268 6588
24
24
1557 Can you answer these queries II   9 751
31
35
1716 Can you answer these queries III   110 5004
22
21
2713 Can you answer these queries IV   26 1136
22
20
2916 Can you answer these queries V   24 1255
21
24
4487 Can you answer these queries VI   9 623
35
31
6779 Can you answer these queries VII   5 366
36
23
19543 Can you answer these queries VIII   3 19
34
34
132 Help R2-D2!   3 565
27
24
12210 High and Low   55
8002 Horrible Queries   220 5900
19
19
18247 Arrangement Validity   5 107
14
17
18248 Maggu’s Solar Panels   36
26721 I LOVE Kd-TREES III   3 38
34
34
3693 Maximum Sum   23 3767
23
21
8985 Line up   8 218
17
21
20063 Large subsequence Problem   6 303
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