Problem 2448. Back to the future

Created by Óscar

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121 Solutions
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Last Solution submitted on Feb 05, 2023

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2 Comments

Jean-Marie Sainthillier on 19 Jul 2014

New hacking series...
Fun !

Rafael S.T. Vieira on 19 Nov 2022

All these back-to-the-future problems can only be solved with hacks currently. There was a "legit" way to solve them once upon a time, but the author is long gone from Cody's servers. And since he has not updated this in 8 years, it is very unlikely that he will anytime soon.

Solution Comments

Solution 475011

3 Comments

3 Comments

Alfonso Nieto-Castanon on 19 Jul 2014

you are apparently using some cool/sophisticated checks in secret_solver to avoid hacking attempts, but in my opinion it might be safer to just leave the checking of whether the solution is correct or not to your .p function itself, instead of having your .p function return the correct value (e.g. something like testsuite in http://www.mathworks.com/matlabcentral/cody/problems/1969-self-description)

Óscar on 19 Jul 2014

The code is actually doing what it says it is doing, nothing fancy in there. But you are right, for the next one I will take the approach in [Alfnie1969]. Thanks!

Óscar on 19 Jul 2014

Next one is out! http://www.mathworks.com/matlabcentral/cody/problems/2449-back-to-the-future-ii

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Problem 2448. Back to the future

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Problem 2448. Back to the future

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