1480. 一维数组的动态和

文|MESeraph

class Solution {
public:
    vector<int> runningSum(vector<int>& nums) {
        vector<int>::iterator itr;
        int sum=0;
        for(itr=nums.begin(); itr!=nums.end(); itr++)
        {
            sum += *itr;
            *itr = sum;
        }
        return nums;
    }
};