Solution: Subarrays with K Different Integers
Explore how to solve the problem of counting subarrays containing exactly K distinct integers using the sliding window technique. Understand how to use two pointers and a frequency map to efficiently track distinct values, and calculate results by comparing subarrays with at most K and K-1 distinct integers. This lesson equips you with a linear time solution for this common coding interview pattern.
We'll cover the following...
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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