Editorial for Another Contest 7 Problem 2 - Code Review
Remember to use this editorial only when stuck, and not to copy-paste code from it. Please be respectful to the problem author and editorialist.
Submitting an official solution before solving the problem yourself is a bannable offence.
Submitting an official solution before solving the problem yourself is a bannable offence.
Note that the probability of a random permutation not matching is for large values of
. Therefore, it suffices to try 20 random permutations.
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