Solution: Least Number of Unique Integers after K Removals
Explore how to reduce unique integers in an array by exactly removing k elements. Understand the strategy of targeting the least frequent numbers first with a min heap to achieve minimal distinct counts after removals.
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Statement
You are given an integer array, arr, and an integer, k. Your task is to remove exactly k elements from the array so that the number of distinct integers remaining in the array is minimized. Determine the minimum possible count of unique integers after the removals.
Constraints:
arr.lengtharr[i]...