【入门】对角线求和？

状态	递交者	时间	内存	语言	代码	递交时间
AC	202522184	4ms	292 KiB	C++ 98	241 Bytes	2022-12-6 21:24:59
AC	13368253581	4ms	252 KiB	C	242 Bytes	2022-11-15 19:55:35
AC	zzk	7ms	404 KiB	C++ 98	289 Bytes	2023-4-8 8:40:21
AC	202530384	7ms	392 KiB	C++ 11	561 Bytes	2023-3-18 15:18:09
AC	202521221	8ms	380 KiB	C++ 98	362 Bytes	2023-4-7 20:22:19
AC	ldl	8ms	380 KiB	C++ 98	266 Bytes	2023-4-1 14:24:41
AC	202522091	8ms	376 KiB	C++ 98	266 Bytes	2023-4-8 8:41:27
AC	13617682970	9ms	504 KiB	C++ 98	266 Bytes	2023-9-19 21:55:30
AC	202521220	9ms	376 KiB	C++ 98	368 Bytes	2023-4-7 21:19:32
AC	rjj	9ms	380 KiB	C++ 98	288 Bytes	2023-3-31 9:26:19
AC	13983197139	10ms	404 KiB	C++ 98	429 Bytes	2023-4-2 10:59:10
AC	202521341	10ms	404 KiB	C++ 98	264 Bytes	2023-4-5 21:48:20
AC	202522314	10ms	424 KiB	C++	453 Bytes	2023-4-1 21:51:33