Problem G. Problem G. Cyclic
时间限制 1000 ms
内存限制 512 MB
Count the number of cyclic permutations of length n with no continuous subsequence [i, i + 1 mod n].
Output the answer modulo 998244353.
输入数据
输出数据
For each test case, output one line contains a single integer, denoting the answer modulo 998244353.
样例输入
样例输出
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