Subarray with k distinct number

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You are given an integer array $arr$ and an integer $k$. Your task is to find the number of contiguous subarrays in $arr$ that contain **exactly k distinct integers**. A subarray is defined as a continuous and non-empty sequence of elements within the array. --- ## Function Declaration ### Function Name $subarraysWithKDistinct$ – This function computes the number of contiguous subarrays that c

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solution.cppC++17

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