How to solve Coding Challenge 1480. Running Sum of 1d Array

Problem statement 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. Example 1 Input: nums = [1,2,3,4] Output: [1,3,6,10] Explanation: Running sum is obtained as follows: ...