1. 题目2. 解题2.1 递归class Solution {public: vector<int> postorder(Node* root) { vector<i
1. 题目2. 解题2.1 递归class Solution {public: vector<int> preorder(Node* root) { vector<in
/**f(x)=2f(x-1)+x^2;f(0)=0;**/#include <stdio.h>#include <stdlib.h>int f(unsigned int x){ if(x==0) return 0;//处理基准情况 //基准情形:你必须总要有某些基准的情形,它们......