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Problem: Count Subarrays With Fixed Bounds

Medium
30 min
Explore how to identify and count subarrays that meet fixed minimum and maximum bounds within an integer array. This lesson teaches the two pointers approach to efficiently solve problems involving contiguous sequences by ensuring the smallest and largest values in subarrays match specified limits.

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:

  • 22 \leq nums.length 103\leq 10^{3}

  • 11 \leq nums[i], minK, maxK 103\leq 10^{3}

Problem
Ask
Submissions

Problem: Count Subarrays With Fixed Bounds

Medium
30 min
Explore how to identify and count subarrays that meet fixed minimum and maximum bounds within an integer array. This lesson teaches the two pointers approach to efficiently solve problems involving contiguous sequences by ensuring the smallest and largest values in subarrays match specified limits.

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:

  • 22 \leq nums.length 103\leq 10^{3}

  • 11 \leq nums[i], minK, maxK 103\leq 10^{3}