ID NAME QUALITY USERS ACC % DIFFICULTY C I
30734 Ada and Orange Tree   28 365
21
20
30735 Ada and Island   16 407
13
13
21326 Akbar , The great   63 2440
21
18
30500 THE HONEYCOMB MAZE   16 634
17
15
10283 ALL IZZ WELL   69 3447
17
14
372 The Benefactor   48 3042
12
13
3377 A Bug’s Life   342 15291
12
13
10380 prayatna PR   86 5232
6
6
34373 Clickbait   8 22
32
19
27182 Easy modified sudoku   4 296
17
12
9126 Time to live   48 2024
12
15
12183 Help the Commander in Chief   46 907
15
16
38 Labyrinth   97 5294
17
16
30827 THE LAST SHOT   9 648
9
7
1436 Is it a tree   337 20512
10
10
1437 Longest path in a tree   404 19321
14
14
20775 Roger and tree   22 328
17
22
13745 Crack the Safe   19 606
14
13
17732 Salary Management   10 228
22
24
34648 Seven   4 39
9
23
16277 Little Red-Cap   4 217
24
24
18532 Tree _order   41 1196
15
10
1696 Will Indiana Jones Get There   2 120
28
23

#dfs

depth-first search

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