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Solution: Subarrays with K Different Integers

Solution: Subarrays with K Different Integers

Let’s solve the Subarrays with K Different Integers problem using the Sliding Window Pattern.

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 [1,2,3,1,2][1, 2, 3, 1, 2], the subarray [1,2,3][1, 2, 3]contains 33 ...