1491. Average Salary Excluding the Minimum and Maximum Salary #

Problem Statement: #

You are given an array of unique integers salary where salary[i] is the salary of the ith employee.

Return the average salary of employees excluding the minimum and maximum salary. Answers within 10-5 of the actual answer will be accepted.

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

Constraints: #

• 3 <= salary.length <= 100
• 1000 <= salary[i] <= 10⁶
• All the integers of salary are unique.

Solution: #

public double average(int[] salary) {
  Arrays.sort(salary);
  int len = salary.length;
  double res = 0;
  for (int i = 1; i < len - 1; i++)
    res += salary[i];
  return res / (len - 2);
}

... #