Leetcode Problem 1983. Widest Pair of Indices With Equal Range Sum

1983. Widest Pair of Indices With Equal Range Sum

Leetcode Solutions

Prefix Sum and Hash Map Approach

  1. Initialize a hash map to store the first occurrence of each difference between prefix sums, with the key being the difference and the value being the index.
  2. Initialize variables to keep track of the current prefix sum difference and the maximum width found so far.
  3. Iterate through the arrays, updating the prefix sum difference at each step.
  4. If the current difference has been seen before, calculate the width by subtracting the index stored in the hash map from the current index.
  5. Update the maximum width if the current width is larger.
  6. If the current difference has not been seen before, store the current index in the hash map.
  7. After the loop, return the maximum width found.
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Brute Force Approach

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