Given an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]). code example

Example: Given an array nums. We define a running sum of an array as runningSum[i] = sum(nums[0]…nums[i]). Return the running sum of nums.

def running_sum(nums):
    sum = 0
    result = []

    for num in nums:
        sum += num
        result.append(sum)

    return result