1491. Average Salary Excluding the Minimum and Maximum Salary leetcode solution in c++

 

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:

class Solution {
public:
    double average(vector<int>& salary) {
        double res;
        int n=salary.size(),sum=0;
        sort(salary.begin(),salary.end());
        for(int i=0;i<salary.size();i++)
        {
            sum+=salary[i];
        }
        res = sum - (salary[0] + salary[n-1]);
        res/=(n-2);
        return res;
    }
};