拓扑排序法

import java.util.HashMap;
import java.util.HashSet;
import java.util.ArrayList;
import java.util.List;
import java.util.Queue;
import java.util.LinkedList;

public class Topo {
public class Node {
public int value;
public int in;
public int out;
public ArrayList nexts;
public ArrayList edges;

Node(int valuse) {
this.value = valuse;
in = out = 0;
nexts = new ArrayList();
edges = new ArrayList();
}

拓扑排序法最先出现在Python成神之路。