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// @Title: 一维数组的动态和 (Running Sum of 1d Array)
// @Author: 15816537946@163.com
// @Date: 2021-08-28 22:58:33
// @Runtime: 0 ms
// @Memory: 2.7 MB
func runningSum(nums []int) []int {
	n := len(nums)
	if n == 1 {
		return nums
	}
	for i := 1; i < n; i++ {
		nums[i] += nums[i-1]
	}
	return nums

}