Average Salary Excluding the Minimum and Maximum Salary

Description

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(javascript)

/**
 * @param {number[]} salary
 * @return {number}
 */
var average = function(salary) {
    let sum = 0
    let min = Infinity
    let max = -Infinity
    for(let n of salary ) {
        sum+= n
        min = Math.min(min, n)
        max = Math.max(max, n)
    }
    return (sum - min - max)/(salary.length - 2)
};