The problem is about counting the number of strings of size $$$n$$$ consisting of $$$'a'$$$ and $$$'b'$$$ such that for any substring of the string, the absolute difference between the number of $$$'a'$$$ s and $$$'b'$$$ s is less than $$$k$$$.
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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 26.07.2024 16:24:06 (f1).
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what are the constraints?
I don't want you to solve the problem. Just find the judge.
$$$n,k$$$ $$$\leq$$$ 1000
Actually, the solution and the checker here should be the same, unless, of course, if you are fine with having a greedy checker.
I have already solved the problem :|
I want to find the source!
maybe there is no source!