How can I remove the same values from arrays and put the remnants in two different arrays

Question

I have two arrays with string values, they have similar values and different ones, how can I remove the same values from them and put the remnants in two different arrays? Example from below

one_ar = ['Python', 'Java', 'C']
two_ar = ['Python', 'Lua']

one_result = ['Java', 'C']
two_result = ['Lua']

Answer 1

A simple solution would be

one_result = [x in one_ar if x not in two_ar]
two_result = [x in two_ar if x not in one_ar]

If you need it with efficient scaling to large size, you might prefer something else.