【入门】已知一个圆的半径，求解该圆的面积和周长

状态	递交者	时间	内存	语言	代码	递交时间
AC	18829573624	2ms	2.1 MiB	C++	246 Bytes	2025-1-20 15:25:35
AC	20243011	2ms	2.1 MiB	C++	216 Bytes	2024-12-5 18:33:45
AC	415411	3ms	2.1 MiB	C++	259 Bytes	2025-1-29 13:18:02
AC	20243033	3ms	2.1 MiB	C++	185 Bytes	2024-12-25 13:18:50
AC	20243043	3ms	2.1 MiB	C++	212 Bytes	2024-12-1 19:28:01
AC	gr1	4ms	2.1 MiB	C++	170 Bytes	2024-11-24 15:02:10
AC	SD20240001	4ms	2.1 MiB	C++	220 Bytes	2025-5-8 23:53:10
AC	20243057	4ms	2.1 MiB	C++	211 Bytes	2024-12-25 13:18:51
AC	20243046	4ms	2.1 MiB	C++	232 Bytes	2024-11-20 13:34:36
AC	lingxiao	4ms	2.1 MiB	C++	159 Bytes	2025-5-14 15:38:36
AC	futubu	4ms	2.1 MiB	C++	219 Bytes	2025-5-20 20:25:13
AC	15198268269	5ms	2.1 MiB	C++	366 Bytes	2025-3-15 8:47:46
AC	20243106	5ms	2.1 MiB	C++	252 Bytes	2025-3-16 17:25:32
AC	20243015	5ms	2.1 MiB	C++	242 Bytes	2025-5-13 13:27:10
AC	20243089	6ms	2.1 MiB	C++	216 Bytes	2025-3-16 18:40:22
AC	20243006	6ms	2.1 MiB	C++	204 Bytes	2025-4-24 20:08:30