comefrom: <doocs>0845.Longest Mountain in Array_1.py
code: def longestMountain( arr: List[int]) -> int:
      left, right = 0, 1
      status = -1
      ans = 0
      while right < len(arr):
          if status == -1 or status == 1:
              if arr[right] == arr[right - 1]:
                  status = -1
              if status == -1:
                  if arr[right] > arr[right - 1]:
                      status = 1
                  else:
                      left = right
              if status == 1 and arr[right] < arr[right - 1]:
                  status = 2
          else:
              if arr[right] == arr[right - 1]:
                  status = -1
                  ans = max(ans, right - left)
                  left = right
              elif arr[right] > arr[right - 1]:
                  status = 1
                  ans = max(ans, right - left)
                  left = right - 1
          right += 1
      if status == 2:
          ans = max(right - left, ans)
      return ans
masked: def sample_funcname ( var_0 : List [ int ] ) -> int :
      var_4 , var_6 = 0 , 1
      var_7 = - 1
      var_8 = 0
      while var_6 < len ( var_0 ) :
          if var_7 == - 1 or var_7 == 1 :
              if var_0 [ var_6 ] == var_0 [ var_6 - 1 ] :
                  var_7 = - 1
              if var_7 == - 1 :
                  if var_0 [ var_6 ] > var_0 [ var_6 - 1 ] :
                      var_7 = 1
                  else :
                      var_4 = var_6
              if var_7 == 1 and var_0 [ var_6 ] < var_0 [ var_6 - 1 ] :
                  var_7 = 2
          else :
              if var_0 [ var_6 ] == var_0 [ var_6 - 1 ] :
                  var_7 = - 1
                  var_8 = max ( var_8 , var_6 - var_4 )
                  var_4 = var_6
              elif var_0 [ var_6 ] > var_0 [ var_6 - 1 ] :
                  var_7 = 1
                  var_8 = max ( var_8 , var_6 - var_4 )
                  var_4 = var_6 - 1
          var_6 += 1
      if var_7 == 2 :
          var_8 = max ( var_6 - var_4 , var_8 )
      return var_8
  