@[linzhicong2011](/user/661534) [this?](https://www.luogu.com.cn/problem/P5684)
by quliannanyishou @ 2022-09-28 19:41:23
@[linzhicong2011](/user/661534) 看起来差不多
by quliannanyishou @ 2022-09-28 19:42:26
是的，但我只要回文串个数
by Dehydration @ 2022-09-28 19:47:06
@[linzhicong2011](/user/661534) 那个题的做法就是全排列个数减回文串个数啊
by quliannanyishou @ 2022-09-28 19:49:38
@[linzhicong2011](/user/661534) 你不减不就行了
by quliannanyishou @ 2022-09-28 19:50:28
ok
by Dehydration @ 2022-09-29 20:18:59