[LeetCode]#1491. Average Salary Excluding the Minimum and Maximum Salary

Environment: Python 3.8

Key technique: remove

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

Analysis:

1. remove min and max number.
2. Calculate average.

Solution:

class Solution:
    def average(self, salary):
        salary.remove(max(salary))
        salary.remove(min(salary))
        return (sum(salary)/len(salary))

Submissions:

Reference:

https://leetcode.com/problems/average-salary-excluding-the-minimum-and-maximum-salary/discuss/1008416/Python-3-SolutionSimple-and-Easy-to-Read