text: class Solution:
      def findMaxAverage(self, nums: List[int], k: int) -> float:
          avg=(sum(nums[:k]))/k
          print(*nums[:k])
          if len(nums)==k:
              return avg
          l=1
          r=k+1
          z=avg
          while r<len(nums)+1:
              s=(avg*k - nums[l-1] + nums[r-1])/k
              print(s)
              z=max(z,s)
              avg=s
              l=l+1
              r=r+1
          return z
  