#1481
Least Number of Unique Integers after K Removals
specialist · 660 · lc medium +30 · verified · 63.8% accepted · 2,338 likes · top 66%
Description
You are given an integer array arr and a non-negative integer k. Remove exactly k elements from arr to minimize the number of distinct values that remain. Return that minimum count of unique integers.
Example 1:
Input: arr = [5,5,4], k = 1
Output: 1
Explanation: Remove the single 4, only 5 is left.
Example 2:
Input: arr = [4,3,1,1,3,3,2], k = 3
Output: 2
Explanation: Remove 4, 2 and either one of the two 1s or three 3s. 1 and 3 will be left.
Code
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