Package g1301_1400.s1338_reduce_array_size_to_the_half

Class Solution

java.lang.Object

g1301_1400.s1338_reduce_array_size_to_the_half.Solution

public class Solution
extends Object

1338 - Reduce Array Size to The Half\. Medium You are given an integer array `arr`. You can choose a set of integers and remove all the occurrences of these integers in the array. Return _the minimum size of the set so that **at least** half of the integers of the array are removed_. **Example 1:** **Input:** arr = [3,3,3,3,5,5,5,2,2,7] **Output:** 2 **Explanation:** Choosing {3,7} will make the new array [5,5,5,2,2] which has size 5 (i.e equal to half of the size of the old array). Possible sets of size 2 are {3,5},{3,2},{5,2}. Choosing set {2,7} is not possible as it will make the new array [3,3,3,3,5,5,5] which has a size greater than half of the size of the old array. **Example 2:** **Input:** arr = [7,7,7,7,7,7] **Output:** 1 **Explanation:** The only possible set you can choose is {7}. This will make the new array empty. **Constraints:** * 2 <= arr.length <= 105 * `arr.length` is even. * 1 <= arr[i] <= 105

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
int	minSetSize(int[] arr)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

minSetSize

public int minSetSize(int[] arr)