ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   13 147
22
22
30735 Ada and Island   7 137
17
12
21326 Akbar , The great   35 936
21
17
30500 THE HONEYCOMB MAZE   12 357
16
15
10283 ALL IZZ WELL   60 2873
18
13
372 The Benefactor   36 2420
12
12
3377 A Bug’s Life   226 8218
13
13
10380 prayatna PR   68 3831
6
6
34373 Clickbait   6 17
31
17
27182 Easy modified sudoku   4 195
17
12
9126 Time to live   37 1523
12
14
12183 Help the Commander in Chief   34 629
15
16
38 Labyrinth   67 4189
18
16
30827 THE LAST SHOT   6 489
9
7
1436 Is it a tree   260 12518
10
10
1437 Longest path in a tree   297 11010
14
15
20775 Roger and tree   19 250
16
21
13745 Crack the Safe   15 544
13
13
17732 Salary Management   8 204
23
26
34648 Seven   2 27
17
34
16277 Little Red-Cap   3 199
21
21
18532 Tree _order   35 971
16
12
1696 Will Indiana Jones Get There   1 117
34
34

#dfs

depth-first search

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