计算分数的浮点数值

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	ALT_xizhanxuan	20ms	20.4 MiB	C++14	184 Bytes	2026-9-7 11:53:10
AC	ALT_zhaojunbo	20ms	20.4 MiB	C++14	147 Bytes	2026-9-12 21:20:23
AC	admin	20ms	20.4 MiB	C++14	214 Bytes	2026-8-28 14:59:28
AC	ALT_chejunhao	20ms	20.4 MiB	C++14	146 Bytes	2026-9-13 11:01:00
AC	ALT_sunshuoran	20ms	20.4 MiB	C++14	138 Bytes	2026-9-5 17:29:42
AC	ALT_wujinze	21ms	20.4 MiB	C++14	148 Bytes	2026-10-11 21:00:31
AC	ALT_wangyanruichen	21ms	20.4 MiB	C++14	155 Bytes	2026-10-25 18:47:08
AC	ALT_cuiminglei	21ms	20.4 MiB	C++14	132 Bytes	2026-10-10 23:36:49
AC	ALT_zhangzixuan	22ms	20.4 MiB	C++14	155 Bytes	2026-9-13 19:38:00