Solution: Least Number of Unique Integers after K Removals
Explore how to minimize the number of unique integers in an array after removing exactly K elements. Understand the step-by-step approach using frequency maps and min heaps to effectively remove the least frequent integers first. This lesson guides you to implement a strategy that balances removal efficiency with computational complexity, ensuring an optimal solution in O(n log n) time.
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]...