Average Salary Excluding the Minimum and Maximum Salary

Given an array of unique integers salary where salary[i] is the salary of the employee i.

Return the average salary of employees excluding the minimum and maximum salary.

Example 1:

Input: salary = [4000,3000,1000,2000]
Output: 2500.00000
Explanation: Minimum salary and maximum salary are 1000 and 4000 respectively.
Average salary excluding minimum and maximum salary is (2000+3000)/2= 2500

Example 2:

Input: salary = [1000,2000,3000]
Output: 2000.00000
Explanation: Minimum salary and maximum salary are 1000 and 3000 respectively.
Average salary excluding minimum and maximum salary is (2000)/1= 2000

Example 3:

Input: salary = [6000,5000,4000,3000,2000,1000]
Output: 3500.00000

Example 4:

Input: salary = [8000,9000,2000,3000,6000,1000]
Output: 4750.00000

Constraints:

3 <= salary.length <= 100
10^3 <= salary[i] <= 10^6
salary[i] is unique.
Answers within 10^-5 of the actual value will be accepted as correct.

Solution:

class Solution {
    public double average(int[] salary) {
        int sum = 0;
        int min = Integer.MAX_VALUE, max = Integer.MIN_VALUE;
        for (int s : salary) {
            sum += s;
            min = Math.min(min, s);
            max = Math.max(max, s);
        }
        sum -= min;
        sum -= max;
        return (double )(sum) / (salary.length - 2);
    }
}