comefrom: <doocs>1380.Lucky Numbers in a Matrix_1.py
code: def luckyNumbers( matrix: List[List[int]]) -> List[int]:
      rows = {min(row) for row in matrix}
      cols = {max(col) for col in zip(*matrix)}
      return list(rows & cols)
masked: def sample_funcname ( var_0 : List [ List [ int ] ] ) -> List [ int ] :
      var_5 = { min ( var_4 ) for var_4 in var_0 }
      var_9 = { max ( var_7 ) for var_7 in zip ( * var_0 ) }
      return list ( var_5 & var_9 )
  