ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   11 107
22
23
30735 Ada and Island   6 95
21
14
21326 Akbar , The great   28 676
21
17
30500 THE HONEYCOMB MAZE   10 289
16
16
10283 ALL IZZ WELL   52 2730
18
14
372 The Benefactor   34 2326
13
12
3377 A Bug’s Life   184 7400
13
13
10380 prayatna PR   55 3421
6
6
34373 Clickbait   5 13
34
17
27182 Easy modified sudoku   4 180
17
12
9126 Time to live   29 1339
11
14
12183 Help the Commander in Chief   28 495
14
15
38 Labyrinth   59 3993
18
16
30827 THE LAST SHOT   6 436
9
7
1436 Is it a tree   239 11687
10
10
1437 Longest path in a tree   267 10180
14
15
20775 Roger and tree   18 236
16
21
13745 Crack the Safe   14 513
14
13
17732 Salary Management   7 180
21
27
34648 Seven   2 24
17
34
16277 Little Red-Cap   190
17
17
18532 Tree _order   28 890
16
11
1696 Will Indiana Jones Get There   1 114
34
34

#dfs

depth-first search

https://en.wikipedia.org/wiki/Depth-first_search https://www.ics.uci.edu/~eppstein/161/960215.html