ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   7 89
19
21
30735 Ada and Island   6 86
21
14
21326 Akbar , The great   24 627
20
17
30500 THE HONEYCOMB MAZE   10 273
16
16
10283 ALL IZZ WELL   50 2679
18
14
372 The Benefactor   33 2287
12
12
3377 A Bug’s Life   172 7189
13
13
10380 prayatna PR   55 3301
6
6
34373 Clickbait   5 13
34
17
27182 Easy modified sudoku   4 175
17
12
9126 Time to live   29 1295
11
15
12183 Help the Commander in Chief   24 465
13
15
38 Labyrinth   56 3918
18
16
30827 THE LAST SHOT   6 427
9
7
1436 Is it a tree   232 11449
11
10
1437 Longest path in a tree   252 9953
14
15
20775 Roger and tree   18 231
16
21
13745 Crack the Safe   14 505
14
13
17732 Salary Management   7 176
21
27
34648 Seven   2 24
17
34
16277 Little Red-Cap   -1 187
26
26
18532 Tree _order   26 864
16
10
1696 Will Indiana Jones Get There   1 114
34
34

#dfs

depth-first search

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