643_maximum_average_subarray_I.py

class Solution:
    def findMaxAverage(self, nums: List[int], k: int) -> float:
        max_sum = curr_sum = sum(nums[0:k])
        for i in range(k, len(nums)):
            curr_sum = curr_sum - nums[i-k] + nums[i]
            max_sum = max(max_sum, curr_sum)
        return max_sum/k

'''
    This is my personal record of solving Leetcode Problems. 
    If you have any questions, please discuss them in [Issues](https://github.com/mengxinayan/leetcode/issues).
    Copyright (C) 2020-2022  mengxinayan

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
'''