LeetCode-Go/leetcode/1619.Mean-of-Array-After-Removing-Some-Elements/1619. Mean of Array After Removing Some Elements.go

package leetcode

import "sort"

func trimMean(arr []int) float64 {
	sort.Ints(arr)
	n, sum := len(arr), 0
	for i := n / 20; i < n-(n/20); i++ {
		sum += arr[i]
	}
	return float64(sum) / float64((n - (n / 10)))
}