comefrom: <doocs>0240.Search a 2D Matrix II_1.py
code: def searchMatrix( matrix: List[List[int]], target: int) -> bool:
      m, n = len(matrix), len(matrix[0])
      i, j = m - 1, 0
      while i >= 0 and j < n:
          if matrix[i][j] == target:
              return True
          if matrix[i][j] > target:
              i -= 1
          else:
              j += 1
      return False
masked: def sample_funcname ( var_0 : List [ List [ int ] ] , var_3 : int ) -> bool :
      var_6 , var_8 = len ( var_0 ) , len ( var_0 [ 0 ] )
      var_10 , var_11 = var_6 - 1 , 0
      while var_10 >= 0 and var_11 < var_8 :
          if var_0 [ var_10 ] [ var_11 ] == var_3 :
              return True
          if var_0 [ var_10 ] [ var_11 ] > var_3 :
              var_10 -= 1
          else :
              var_11 += 1
      return False
  