ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   6 47
17
21
30735 Ada and Island   4 55
21
14
21326 Akbar , The great   14 423
20
17
30500 THE HONEYCOMB MAZE   10 173
17
16
10283 ALL IZZ WELL   44 2396
18
14
372 The Benefactor   28 2098
13
12
3377 A Bug’s Life   133 6187
14
13
10380 prayatna PR   46 2823
7
7
34373 Clickbait   5 8
34
17
27182 Easy modified sudoku   4 125
17
17
9126 Time to live   22 1130
11
14
12183 Help the Commander in Chief   19 374
14
17
38 Labyrinth   47 3554
19
16
30827 THE LAST SHOT   6 308
8
8
1436 Is it a tree   190 10170
10
10
1437 Longest path in a tree   214 8766
14
15
20775 Roger and tree   16 182
16
21
13745 Crack the Safe   14 465
14
13
17732 Salary Management   7 152
21
27
16277 Little Red-Cap   -1 176
26
26
18532 Tree _order   23 715
16
10
1696 Will Indiana Jones Get There   106
50
50

#dfs

depth-first search

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