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Solution: Count Subarrays With Fixed Bounds

Explore how to efficiently count fixed-bound subarrays in an integer array using the two pointers technique. This lesson teaches you to track positions of key elements and invalid values in a single pass, enabling you to solve related coding interview problems with optimal time and space complexity.

Statement

Given an integer array, nums, and two integers minK and maxK, return the number of fixed-bound subarrays.

A subarray in nums is called a fixed-bound subarray if it satisfies the following conditions:

  1. The smallest value in the subarray equals minK.

  2. The largest value in the subarray equals maxK.

Note: A subarray is a contiguous sequence of elements within an array.

Constraints:

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