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Subarrays with K Different Integers

Explore how to count subarrays with exactly k distinct integers in an array using the sliding window approach. Understand the problem constraints and practice solving it with hands-on coding exercises to improve efficiency and accuracy in coding interviews.

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 ...