奇怪，我 4e5 没问题啊
by Iniaugoty @ 2023-08-13 10:50:12
奇怪loj过了luogu却炸了
by NaNO2_Cabbage @ 2023-08-14 21:53:38
警示后人：如果宏定义longlong一定要写在程序最上方，否则WA50pts
by NaNO2_Cabbage @ 2023-08-14 22:01:11