ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   24 226
22
20
30735 Ada and Island   12 236
13
12
21326 Akbar , The great   53 1524
22
18
30500 THE HONEYCOMB MAZE   15 492
17
16
10283 ALL IZZ WELL   68 3152
17
14
372 The Benefactor   43 2765
12
13
3377 A Bug’s Life   315 11704
12
13
10380 prayatna PR   82 4764
6
5
34373 Clickbait   7 22
34
20
27182 Easy modified sudoku   4 234
17
12
9126 Time to live   47 1859
12
15
12183 Help the Commander in Chief   45 842
15
16
38 Labyrinth   93 4636
18
16
30827 THE LAST SHOT   7 581
8
7
1436 Is it a tree   318 16093
10
10
1437 Longest path in a tree   376 14535
13
14
20775 Roger and tree   22 302
17
22
13745 Crack the Safe   18 579
13
13
17732 Salary Management   9 216
22
24
34648 Seven   4 33
9
23
16277 Little Red-Cap   4 211
24
24
18532 Tree _order   39 1088
15
10
1696 Will Indiana Jones Get There   2 119
28
23

#dfs

depth-first search

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