comefrom: <qiyuangong>191_Number_of_1_Bits_2.py
code: def hammingWeight( n):
      count = 0
      while n:
          n &= n - 1
          count += 1
      return count
masked: def sample_funcname ( var_0 ) :
      var_2 = 0
      while var_0 :
          var_0 &= var_0 - 1
          var_2 += 1
      return var_2
  