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g2501_2600.s2574_left_and_right_sum_differences.readme.md Maven / Gradle / Ivy

2574\. Left and Right Sum Differences

Easy

Given a **0-indexed** integer array `nums`, find a **0-indexed** integer array `answer` where:

*   `answer.length == nums.length`.
*   `answer[i] = |leftSum[i] - rightSum[i]|`.

Where:

*   `leftSum[i]` is the sum of elements to the left of the index `i` in the array `nums`. If there is no such element, `leftSum[i] = 0`.
*   `rightSum[i]` is the sum of elements to the right of the index `i` in the array `nums`. If there is no such element, `rightSum[i] = 0`.

Return _the array_ `answer`.

**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].

**Constraints:**

*   `1 <= nums.length <= 1000`
*   1 <= nums[i] <= 105