Educational codeforces round 113 C. July meeting

https://codeforces.com/contest/1569/problem/C Meaning: n numbers. Every time it passes through a number, it will be - 1. If no number is continuously reduced twice when all numbers are reduced, such a sequence is called a good sequence. Find the number of all good sequences. The answer is mod998244353 Solution: We can find that no matter wh ...

Added by EdN on Thu, 09 Sep 2021 23:02:19 +0300