统计直角个数

状态	递交者	时间	内存	语言	代码	递交时间
AC	chenjunfeng	2ms	504 KiB	C++14(O2)	181 Bytes	2025-9-20 15:57:33
AC	zhangyisi	2ms	504 KiB	C++14(O2)	209 Bytes	2025-11-25 17:48:31
AC	liwenxin	2ms	504 KiB	C++14(O2)	198 Bytes	2025-9-20 15:57:43
AC	luzhuofan	2ms	364 KiB	C++14(O2)	155 Bytes	2025-10-2 11:26:37
AC	liweiwei	2ms	300 KiB	C++14(O2)	177 Bytes	2025-10-12 17:07:31
AC	yejuntao	2ms	504 KiB	C++14(O2)	166 Bytes	2025-10-2 11:26:46
AC	yanghejing	2ms	504 KiB	C++14(O2)	190 Bytes	2025-10-2 9:35:45
AC	jiangxiangtong	2ms	504 KiB	C++14(O2)	174 Bytes	2025-9-20 15:57:42