Shanhj的博客

#pragma once#include <iostream>#include <stack>#include <queue>using namespace std;struct binary_tree{ binary_tree *lchild = 0; binary_tree *rchild = 0; int data;};/*递归写法*///先序遍历：root,lchild,rchildvoid pre_print(bina

当前总结了树的一些知识