Testing graphs for bipartiteness

Graphs are amazing.

Bipartiteness is a characteristic of certain graphs. A graph is bipartite if and only if you can color each node one of two two colors in such a way that no two adjacent nodes have the same color. Well, that's the realization of the actual definition, which can be found here. The two-color definition is also the foundation for the algorithm I wrote that tests whether or not a graph is bipartite.

My solution can be found here: