#2574

Left and Right Sum Differences

newbie · 100 · lc easy +12 · verified · 88% accepted · 1,245 likes · top 99%

Description

For a 0-indexed integer array nums, let leftSum[i] be the sum of all elements strictly to the left of index i (0 if none exist), and rightSum[i] be the sum strictly to the right (0 if none exist). Return an array where each entry is |leftSum[i] - rightSum[i]|.

Example 1:

Input: nums = [10,4,8,3]

Output: [15,1,11,22]

Explanation: The array leftSum is [0,10,14,22] and the array rightSum is [15,11,3,0].

The array answer is [|0 - 15|,|10 - 11|,|14 - 3|,|22 - 0|] = [15,1,11,22].

Example 2:

Input: nums = [1]

Output: [0]

Explanation: The array leftSum is [0] and the array rightSum is [0].

The array answer is [|0 - 0|] = [0].

Code

1

2

3

class Solution:
    def leftRightDifference(self, nums: List[int]) -> List[int]:

class Solution:
    def leftRightDifference(self, nums: List[int]) -> List[int]: