【例4.2】天安门广场的面积

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	张宸语2026dly	3ms	508 KiB	C++14(O2)	88 Bytes	2026-1-3 11:07:11
AC	安致远2026dly	3ms	508 KiB	C++14(O2)	133 Bytes	2025-12-29 20:55:41
AC	duobei	3ms	504 KiB	C++14	89 Bytes	2025-5-29 23:10:46
AC	乃隆	3ms	536 KiB	C++14(O2)	96 Bytes	2025-9-12 16:07:30
AC	杨家齐xly2025	3ms	504 KiB	C++17(O2)	96 Bytes	2025-12-28 22:32:10
AC	shtian	3ms	768 KiB	C++98	144 Bytes	2024-7-10 20:40:26
AC	BRO	3ms	536 KiB	C++98	93 Bytes	2024-7-8 23:28:16
AC	刘耘滕2026dly	3ms	504 KiB	C++14(O2)	95 Bytes	2026-1-4 20:43:11
AC	张霖桐	3ms	504 KiB	C++14(O2)	103 Bytes	2025-7-4 9:57:14
AC	刀云皓2026dly	3ms	508 KiB	C++14(O2)	100 Bytes	2025-12-29 21:10:22
AC	王芊朗2026dly	3ms	504 KiB	C++14(O2)	92 Bytes	2026-1-1 20:12:14