Solution: Subarrays with K Different Integers
Understand how to apply the sliding window pattern to count subarrays containing exactly K distinct integers. Learn the approach of using at most K and K-1 distinct counts to isolate the exact subarray count while managing window boundaries with frequency maps, enabling efficient linear-time solutions.
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We'll cover the following...
Statement
You are given an integer array nums and an integer k. Your task is to return the number of good subarrays of nums.
A good subarray is a contiguous subarray that contains exactly k distinct integers. For example, in the array
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