ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   28 302
22
21
30735 Ada and Island   16 330
13
13
21326 Akbar , The great   58 2033
21
18
30500 THE HONEYCOMB MAZE   16 577
17
15
10283 ALL IZZ WELL   71 3323
17
14
372 The Benefactor   48 2935
12
13
3377 A Bug’s Life   337 14231
12
13
10380 prayatna PR   86 5090
6
6
34373 Clickbait   8 20
32
19
27182 Easy modified sudoku   4 271
17
12
9126 Time to live   48 1982
12
15
12183 Help the Commander in Chief   46 893
15
16
38 Labyrinth   96 5104
17
16
30827 THE LAST SHOT   9 625
9
7
1436 Is it a tree   333 18959
10
10
1437 Longest path in a tree   399 17466
14
14
20775 Roger and tree   22 322
17
22
13745 Crack the Safe   19 600
14
13
17732 Salary Management   10 223
22
24
34648 Seven   4 36
9
23
16277 Little Red-Cap   4 213
24
24
18532 Tree _order   40 1123
15
10
1696 Will Indiana Jones Get There   2 116
28
23

#dfs

depth-first search

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