图的深度优先遍历_本关任务:请你实现 graph.cpp 里的int graph_widthfirst(graph*g

public void f(Node ndoe){
	if(node == null){
		return; 
	}
	Stack<Node> stack = new Stack<>();
	HashSet<Node> HashSet = new HashSet<>();
	stack.add(node);
	HashSet.add(node);
	System.out.println(node.value);
	while(!stack.isEmpty()){
		Node cur = queue.poll();
		for(Node next: cur.nexts){
			if(!HashSet.contains(cur)){
				 stack.push(cur);
				 stack.push(next);
				 HashSet.add(next);
				 System.out.println(next.value);
				 break;
			 }
		} 
	}
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22