ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   22 214
21
20
30735 Ada and Island   12 208
14
11
21326 Akbar , The great   45 1337
21
17
30500 THE HONEYCOMB MAZE   15 459
17
16
10283 ALL IZZ WELL   65 3094
18
13
372 The Benefactor   42 2702
12
13
3377 A Bug’s Life   295 10725
13
13
10380 prayatna PR   81 4562
6
6
34373 Clickbait   7 22
34
20
27182 Easy modified sudoku   4 220
17
12
9126 Time to live   45 1793
12
14
12183 Help the Commander in Chief   44 807
15
16
38 Labyrinth   86 4503
18
15
30827 THE LAST SHOT   7 555
8
7
1436 Is it a tree   309 14991
10
10
1437 Longest path in a tree   358 13501
13
14
20775 Roger and tree   21 297
16
21
13745 Crack the Safe   17 575
14
13
17732 Salary Management   8 218
23
26
34648 Seven   4 33
9
23
16277 Little Red-Cap   4 210
24
24
18532 Tree _order   39 1072
15
10
1696 Will Indiana Jones Get There   2 118
28
23

#dfs

depth-first search

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