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问题:给一颗二叉树的前序遍历和中序遍历 ，给出后序遍历。前序遍历 根 左 右中序遍历 左 根 右后序遍历 左 右 根给一个例子:A B D E CB D E A C例子中A为根节点 A的左子树是 BDE 右子树。考虑递归。#include<bits/stdc++.h>using namespace std;string str1,str2,ans;int cnt; void solve(string a,string b){ if(a.size()==0) ret

E. We Need More Bossestime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYour friend is developing a computer game. He has already ...

题目：https://www.luogu.org/problemnew/show/P5019今年noip考了一道原题:在考场上我想了暴力的方法:这题暴力可以过 #include&lt;cstdio&gt;#include&lt;cstring&gt;#include&lt;algorithm&gt;#include&lt;cmath&gt;using namespac...