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Solution: Count Subarrays With Fixed Bounds

Explore how to solve the fixed-bound subarray counting problem using the two-pointer technique. Understand how to track indices of minK, maxK, and invalid numbers to count valid subarrays in one pass. This lesson helps you improve problem-solving efficiency and grasp key algorithmic thinking for coding interviews.

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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