Solution: Count Subarrays With Fixed Bounds
Explore how to solve the problem of counting fixed-bound subarrays by applying the two pointers technique. Understand how to track critical indices such as the last occurrences of minK, maxK, and invalid numbers. Learn to efficiently accumulate valid subarrays in a single pass while maintaining O(n) time complexity and O(1) space usage.
We'll cover the following...
We'll cover the following...
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:
The smallest value in the subarray equals
minK.The largest value in the subarray equals
maxK.
Note: A subarray is a contiguous sequence of elements within an array.
Constraints:
...