Leetcode Problem 2574. Left and Right Sum Differences

2574. Left and Right Sum Differences

Leetcode Solutions

Prefix and Suffix Sum Approach

  1. Initialize an array answer of the same length as nums with all elements set to 0.
  2. Initialize two variables, leftSum and rightSum, to 0.
  3. Calculate the total sum of the nums array and store it in rightSum.
  4. Iterate through the nums array from left to right. a. Subtract the current element from rightSum to get the sum of elements to the right. b. Calculate the absolute difference between leftSum and rightSum and store it in the answer array at the current index. c. Add the current element to leftSum.
  5. Return the answer array.
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Iterative Two-Pass Approach

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