练18.4 计算邮资

状态	递交者	时间	内存	语言	代码	递交时间
AC	u2603	25ms	536 KiB	C++98	340 Bytes	2026-4-10 21:10:27
AC	u2604	25ms	512 KiB	C++11(O2)	337 Bytes	2026-4-20 21:57:33
AC	u2616	26ms	540 KiB	C++14	325 Bytes	2026-5-16 15:15:05
AC	u2602	27ms	516 KiB	C++11	457 Bytes	2026-4-20 19:56:46
AC	u2607	27ms	768 KiB	C++98	445 Bytes	2026-4-13 13:20:21
AC	u2608	27ms	768 KiB	C++98	398 Bytes	2026-5-1 8:40:36
AC	u2606	27ms	556 KiB	C++11	298 Bytes	2026-5-4 23:40:50
AC	u2605	28ms	512 KiB	C++98	252 Bytes	2026-4-5 13:49:30