3DSCTF 2016 : prog100-alien_dna1

Access the server in


No secret here, we need to figure out the logic behind the correct answer and send it to server. The picture seems more confusing than helping and I doubt there is any relationship with real DNA subtracting.

After some trial and error we understood the logic. Its a simple set theory exercise.. in ths case difference between two sets.

{C, C, G, T} \ {G, A, G, G} difference is {A, T, C} = 3

My team tried to answer manually but things got worse when hit 50 Stage hahah..

So I quickly wrote this script..

.. and done!