Leetcode Problem 2763. Sum of Imbalance Numbers of All Subarrays

2763. Sum of Imbalance Numbers of All Subarrays

Leetcode Solutions

Using Multiset to Track Imbalance Numbers

  1. Initialize ans to 0 to store the final result.
  2. Iterate over the array with index i from 0 to n-1.
  3. For each i, initialize a multiset ms and a counter cnt to 0.
  4. Iterate over the array with index j from i to n-1.
  5. For each j, insert nums[j] into the multiset ms.
  6. Find the position of nums[j] in ms and get iterators to the elements just before and after nums[j].
  7. Adjust cnt based on the differences between nums[j] and its neighbors.
  8. Add cnt to ans.
  9. Return ans.
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Brute Force with Sorting Subarrays

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