求圆环的面积

状态	递交者	时间	内存	语言	代码	递交时间
AC	lgp	3ms	18.1 MiB	C++14(O2)	183 Bytes	2025-6-16 18:48:09
AC	syoj030	4ms	18.1 MiB	C++14(O2)	204 Bytes	2025-6-19 13:58:53
AC	syoj032	4ms	18.1 MiB	C++14(O2)	295 Bytes	2025-6-19 15:16:49
AC	syoj049	4ms	18.1 MiB	C++14(O2)	191 Bytes	2025-6-19 14:05:44
AC	zxl	4ms	18.1 MiB	C++14(O2)	198 Bytes	2025-6-18 22:22:49
AC	syoj015	4ms	18.1 MiB	C++14(O2)	182 Bytes	2025-6-19 15:53:43
AC	syoj022	4ms	18.1 MiB	C++14(O2)	167 Bytes	2025-6-19 15:54:59
AC	syoj006	4ms	18.1 MiB	C++14(O2)	339 Bytes	2025-6-19 15:56:15
AC	syoj038	4ms	18.1 MiB	C++14(O2)	182 Bytes	2025-6-19 15:57:39
AC	syoj007	4ms	18.1 MiB	C++14(O2)	160 Bytes	2025-6-19 14:29:26
AC	钟皇	4ms	17.7 MiB	C++14(O2)	182 Bytes	2025-6-19 15:54:37
AC	syoj053	4ms	18.1 MiB	C++14(O2)	187 Bytes	2025-6-19 14:25:12
AC	syoj052	4ms	18.1 MiB	C++14(O2)	136 Bytes	2025-6-19 16:00:01
AC	syoj025	4ms	18.1 MiB	C++14(O2)	161 Bytes	2025-6-19 14:42:03
AC	syoj004	4ms	18.1 MiB	C++14(O2)	189 Bytes	2025-6-19 20:31:23
AC	syoj050	4ms	18.1 MiB	C++14(O2)	266 Bytes	2025-6-19 13:29:16
AC	syoj011	4ms	18.1 MiB	C++14(O2)	195 Bytes	2025-6-19 14:26:28
AC	syoj047	4ms	18.1 MiB	C++14(O2)	184 Bytes	2025-6-19 15:01:46
AC	syoj037	4ms	18.1 MiB	C++14(O2)	137 Bytes	2025-6-19 13:13:10
AC	syoj021	4ms	18.1 MiB	C++14(O2)	156 Bytes	2025-6-19 15:21:03
AC	syoj005	4ms	18.1 MiB	C++14(O2)	181 Bytes	2025-6-19 15:57:25
AC	龚佳颖	4ms	18.1 MiB	C++14(O2)	154 Bytes	2025-6-19 15:05:45
AC	syoj034	4ms	18.1 MiB	C++14(O2)	218 Bytes	2025-6-19 12:17:04
AC	syoj008	5ms	17.7 MiB	C++14(O2)	280 Bytes	2025-6-20 9:30:10
AC	syoj013	5ms	18.1 MiB	C++14(O2)	177 Bytes	2025-6-19 19:27:42