comefrom: <doocs>2133.Check if Every Row and Column Contains All Numbers_1.py
code: def checkValid( matrix: List[List[int]]) -> bool:
      n = len(matrix)
      for i in range(n):
          seen = [False] * n
          for j in range(n):
              v = matrix[i][j] - 1
              if seen[v]:
                  return False
              seen[v] = True
      for j in range(n):
          seen = [False] * n
          for i in range(n):
              v = matrix[i][j] - 1
              if seen[v]:
                  return False
              seen[v] = True
      return True
masked: def sample_funcname ( var_0 : List [ List [ int ] ] ) -> bool :
      var_5 = len ( var_0 )
      for var_7 in range ( var_5 ) :
          var_9 = [ False ] * var_5
          for var_10 in range ( var_5 ) :
              var_12 = var_0 [ var_7 ] [ var_10 ] - 1
              if var_9 [ var_12 ] :
                  return False
              var_9 [ var_12 ] = True
      for var_10 in range ( var_5 ) :
          var_9 = [ False ] * var_5
          for var_7 in range ( var_5 ) :
              var_12 = var_0 [ var_7 ] [ var_10 ] - 1
              if var_9 [ var_12 ] :
                  return False
              var_9 [ var_12 ] = True
      return True
  