import pyutil as pyu
pyu.get_local_pyinfo()

print(pyu.ps2("python-dotenv"))

from typing import List

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

    for i in range(k, len(nums)):
      summ += nums[i] - nums[i - k]
      ans = max(ans, summ)

    return ans / k

new Solution().findMaxAverage()