The test suite should check the size of the answer. It seems kind of a cheat to give an answer with 8 characters when the encrypted message has length 10. We can't be sure if the person found the asnwer for the two last characters or not.
And this problem is much easier than others you solved here!! ;-)
Sorry, I was tempted by the 'break the lock' part... :)
Times 2 - START HERE
Back to basics 24 - Symbolic variables
Create a square matrix of multiples
What's Your BMI?
Generate a random matrix A of (1,-1)
Polite numbers. N-th polite number.
Pancakes for everyone!
Don't Try, give up and return NaN.
expand intervals vol.2
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