Package g1601_1700.s1619_mean_of_array_after_removing_some_elements

Class Solution

java.lang.Object

g1601_1700.s1619_mean_of_array_after_removing_some_elements.Solution

public class Solution
extends Object

1619 - Mean of Array After Removing Some Elements.<p>Easy</p> <p>Given an integer array <code>arr</code>, return <em>the mean of the remaining integers after removing the smallest <code>5%</code> and the largest <code>5%</code> of the elements.</em></p> <p>Answers within <code>10^-5</code> of the <strong>actual answer</strong> will be considered accepted.</p> <p><strong>Example 1:</strong></p> <p><strong>Input:</strong> arr = [1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3]</p> <p><strong>Output:</strong> 2.00000</p> <p><strong>Explanation:</strong> After erasing the minimum and the maximum values of this array, all elements are equal to 2, so the mean is 2.</p> <p><strong>Example 2:</strong></p> <p><strong>Input:</strong> arr = [6,2,7,5,1,2,0,3,10,2,5,0,5,5,0,8,7,6,8,0]</p> <p><strong>Output:</strong> 4.00000</p> <p><strong>Example 3:</strong></p> <p><strong>Input:</strong> arr = [6,0,7,0,7,5,7,8,3,4,0,7,8,1,6,8,1,1,2,4,8,1,9,5,4,3,8,5,10,8,6,6,1,0,6,10,8,2,3,4]</p> <p><strong>Output:</strong> 4.77778</p> <p><strong>Constraints:</strong></p> <ul> <li><code>20 <= arr.length <= 1000</code></li> <li><code>arr.length</code> <strong>is a multiple</strong> of <code>20</code>.</li> <li><code>0 <= arr[i] <= 10⁵</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
double	trimMean(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

trimMean

public double trimMean(int[] arr)