[leetCode] 1491. Average Salary Excluding the Minimum and Maximum Salary (Python)

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

class Solution:
    def average(self, salary: List[int]) -> float:
        return (sum(salary) - max(salary) - min(salary)) / (len(salary)-2)

Solution 해설

먼저 이 문제는 급여 리스트를 받으면 가장 높은 급여와 가장 낮은 급여를 제외한 급여의 평균을 구하는 문제입니다.

따라서 전체 합을 구하고 거기서 최대, 최소 급여를 뺀 금액을 전체 개수 -2 로 나눈 값을 정답으로 한다.

 

SOMJANG/CODINGTEST_PRACTICE