Depth-first Search
Problems on depth-first search, including connected components, cycle detection, entry and exit times, bridges and articulation points, strongly connected components, topological sorting, and traversals of trees and grids.
The Graphs section of the library covers depth-first search, connected components, cycle detection, strongly connected components and topological sort. Related problem sets are under Graphs and Trees.
Problems
Cactus Jubilee#7563
Very hard
Hypercube#7568
Hard
Legacy Code#7713
Medium
City Park#7917
Hard
Colorgraph#8561
Hard
Amalthea's new walk#8718
Very hard
Experiences#8724
Hard
G. Team#9092
Easy
Trees Gump#9751
Hard
Tree PreOrder Traversal#10057
Very easy
Tree InOrder Traversal#10059
Very easy
Tree Sum of elements#10064
Very easy
Tree Same#10108
Very easy
Tree Maximum depth#10110
Very easy
Tree Sum of leaves#10113
Very easy