comefrom: <garvit244>448_1.py
code: def findDisappearedNumbers( nums):
      if not nums:
          return []
      result = []
      for num in nums:
          index = abs(num)-1
          if nums[index] > 0:
              nums[index]*=-1
      for index, num in enumerate(nums):
          if num >0:
              result.append(index+1)
      return result
masked: def sample_funcname ( var_0 ) :
      if not var_0 :
          return [ ]
      var_1 = [ ]
      for var_2 in var_0 :
          var_5 = abs ( var_2 ) - 1
          if var_0 [ var_5 ] > 0 :
              var_0 [ var_5 ] *= - 1
      for var_5 , var_2 in enumerate ( var_0 ) :
          if var_2 > 0 :
              var_1.append ( var_5 + 1 )
      return var_1
  