gengyu89

package tarjan

import scala.collection.mutable

// See python version: https://github.com/bwesterb/py-tarjan
/**
  * Tarjan's algorithm is an algorithm in graph theory for finding the strongly connected components of a directed graph. It runs in linear time,
  * matching the time bound for alternative methods including Kosaraju's algorithm and the path-based strong component algorithm.
  */
class TarjanRecursive {