力扣做题笔记（2）：一维数组的动态和

输入：nums = [1,2,3,4]
输出：[1,3,6,10]
解释：动态和计算过程为 [1, 1+2, 1+2+3, 1+2+3+4] 。

public class Solution {
    public int[] runningSum(int[] nums) {
        int sum = 0;
        int[] Arrays = new int[nums.length];
        for (int i = 0; i < nums.length; i++) {
            for (int a = 0; a <= (i); a++) {
                sum = sum + nums[a];
                Arrays[i] = sum;
            }
            sum = 0;
        }

        return Arrays;
    }
}