Count Subarrays With Fixed Bounds

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:

• $2 \leq$ nums.length $\leq 10^{3}$

• $1 \leq$ nums[i], minK, maxK $\leq 10^{3}$

Examples