ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   29 377
22
21
30735 Ada and Island   17 501
13
13
21326 Akbar , The great   63 2603
21
18
30500 THE HONEYCOMB MAZE   16 641
17
15
10283 ALL IZZ WELL   70 3472
17
14
372 The Benefactor   48 3063
12
13
3377 A Bug’s Life   342 15656
12
13
10380 prayatna PR   86 5258
6
6
34373 Clickbait   8 22
32
19
27182 Easy modified sudoku   4 308
17
12
9126 Time to live   48 2036
12
15
12183 Help the Commander in Chief   46 913
15
16
38 Labyrinth   98 5326
18
16
30827 THE LAST SHOT   9 654
9
7
1436 Is it a tree   338 20833
10
10
1437 Longest path in a tree   407 19907
14
15
20775 Roger and tree   22 330
17
22
13745 Crack the Safe   19 608
14
13
17732 Salary Management   10 231
22
24
34648 Seven   5 42
11
21
16277 Little Red-Cap   4 221
24
24
18532 Tree _order   41 1197
15
10
1696 Will Indiana Jones Get There   2 123
28
23

#dfs

depth-first search

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