https://leetcode-cn.com/problems/find-pivot-index/
class Solution {
public:
int pivotIndex(vector& nums) {
int n=nums.size();
vectorve;
int s=0; ve.push_back(0);
for(int i=0;i 
https://leetcode-cn.com/problems/find-pivot-index/
class Solution {
public:
int pivotIndex(vector& nums) {
int n=nums.size();
vectorve;
int s=0; ve.push_back(0);
for(int i=0;i