Inline dfs in components for 1.4x speedup
Inline dfs in components for 1.4x speedup

leMaik/graphlib,cpettitt/graphlib,dagrejs/graphlib,kdawes/graphlib,gardner/graphlib,leMaik/graphlib,cpettitt/graphlib,gardner/graphlib,dagrejs/graphlib,dagrejs/graphlib,kdawes/graphlib