ID NAME QUALITY USERS ACC % DIFFICULTY C I
30785 Ada and Apple   8 72
30
19
32952 Ada and Football   1 39
50
50
32223 Ada and Lychees   1 7
50
50
28449 Ada and List   7 233
13
19
32856 Ada and Contact   14
30760 Ada and Travelling Salesman   11 86
24
32
15454 How to Handle the Fans   30 1226
11
11
5832 AND Rounds   41 1407
17
21
27379 Unique Code   16 89
20
19
61 Brackets   153 4205
19
20
14742 Building Bridges(HARD)   9 331
13
15
6168 Building Bridges   22 1333
10
15
23742 Dolan and Nephews   4 40
30
27
33019 Catering Contracts   5 61
23
24
12563 Halt The War   4 264
21
19
13015 Counting Primes   25 844
16
14
7296 Trees Again   4 153
21
30
9722 Insertion Sort   21 2957
13
12
5296 Air Combat   54
10628 Count on a tree   46 1312
33
32
10707 Count on a tree II   36 947
31
34
11414 Combat on a tree   3 97
30
34
11482 Count on a trie   34
34
50
16245 Living with Courage   14 495
10
15
1108 Card Trick   45 1693
21
23
10810 Its a Murder!   42 1903
16
17
3978 Distance Query   33 829
22
21
3267 D-query   323 6576
19
23
9577 Dynamic Tree Connectivity   8 298
34
26
1684 Frequent values   89 2849
20
20
18185 Give Away   19 247
23
20
11985 Gao on a tree   14 291
30
26
12005 Grass Planting   6 201
37
17
1043 Can you answer these queries I   459 8881
24
24
1557 Can you answer these queries II   18 881
30
35
1716 Can you answer these queries III   175 6565
22
21
2713 Can you answer these queries IV   49 1648
22
21
2916 Can you answer these queries V   40 1550
22
23
4487 Can you answer these queries VI   19 802
34
30
6779 Can you answer these queries VII   10 455
39
26
19543 Can you answer these queries VIII   7 79
36
39
132 Help R2-D2!   11 663
22
20
12210 High and Low   60
8002 Horrible Queries   323 8203
20
18
18247 Arrangement Validity   7 147
17
22
18248 Maggu’s Solar Panels   36
26721 I LOVE Kd-TREES III   3 55
34
34
3693 Maximum Sum   45 5047
21
19
8985 Line up   16 299
17
18
20063 Large subsequence Problem   16 398
9
13

#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