练20.4 判断点在第几象限

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	zhutianle	49ms	764 KiB	C++11	257 Bytes	2024-12-29 10:14:56
AC	weilaicheng	50ms	764 KiB	C++11	237 Bytes	2024-12-28 21:24:49
AC	manfen	53ms	764 KiB	C++11	284 Bytes	2024-12-29 8:30:57
AC	zhangyuanyuan	55ms	768 KiB	C++11	200 Bytes	2024-12-29 9:14:55
AC	tongyizhen	55ms	764 KiB	C++11	273 Bytes	2024-12-29 9:59:15
AC	zhengzihao	56ms	768 KiB	C++11	270 Bytes	2024-12-22 12:25:06