README.md

1491. 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.

Solutions (Ruby)

1. Solution

# @param {Integer[]} salary
# @return {Float}
def average(salary)
    min_salary = salary.min
    max_salary = salary.max
    sum_salary = salary.sum

    return 1.0 * (sum_salary - min_salary - max_salary) / (salary.length - 2)
end

Solutions (Rust)

1. Solution

impl Solution {
    pub fn average(salary: Vec<i32>) -> f64 {
        let min_salary = salary.iter().min().unwrap();
        let max_salary = salary.iter().max().unwrap();
        let sum_salary = salary.iter().sum::<i32>();

        (sum_salary - min_salary - max_salary) as f64 / (salary.len() - 2) as f64
    }
}