1491. Average Salary Excluding the Minimum and Maximum Salary

Posted 2020-12-13 wentiliangkaihua

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.

class Solution {
    public double average(int[] salary) {
        int n = salary.length;
        int[] newarr = new int[n-2];
        Arrays.sort(salary);
        newarr = Arrays.copyOfRange(salary, 1, n-1);
        int res = 0;
        for(int i: newarr) res+=i;
        return (double) res / (double) (n-2);
    }
}

Arrays.copyOfRange(int[ ] original, from(inclusive), to(exclusive))