maximum-average-subarray-i.py

class Solution:
    def findMaxAverage(self, nums: List[int], k: int) -> float:
        curr_sum = max_sum = sum(nums[: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