1480. 一维数组的动态和 
class Solution:
    def runningSum(self, nums: List[int]) -> List[int]:
        # for i in range(1, len(nums)):
        # nums[i] += nums[i-1]
            
        # return nums
        
        # return [sum(nums[:i+1]) for i in range(len(nums))]
        return accumulate(nums)