comefrom: <doocs>0190.Reverse Bits_1.py
code: def reverseBits( n: int) -> int:
      res = 0
      for i in range(32):
          res |= (n & 1) << (31 - i)
          n >>= 1
      return res
masked: def sample_funcname ( var_0 : int ) -> int :
      var_3 = 0
      for var_6 in range ( 32 ) :
          var_3 |= ( var_0 & 1 ) << ( 31 - var_6 )
          var_0 >>= 1
      return var_3
  