【例7.2】与圆相关的计算

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	周弈文	23ms	504 KiB	C++14	163 Bytes	2025-12-14 10:45:51
AC	王宇泽	24ms	760 KiB	C++14	152 Bytes	2025-12-14 10:40:37
AC	马梓睿	25ms	764 KiB	C++14	150 Bytes	2025-12-14 10:45:00
AC	小赵老师	26ms	760 KiB	C++14	163 Bytes	2025-12-14 10:38:22