Solution: Least Number of Unique Integers after K Removals
Explore how to determine the minimum number of unique integers remaining after removing exactly K elements from an array. This lesson teaches the strategy of targeting the least frequent integers first by using frequency maps and min heaps. Understand the step-by-step process to implement this approach and analyze its time and space complexity for efficient solutions.
We'll cover the following...
We'll cover the following...
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]...