矩阵指定的一行求和

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	邹弢	11ms	532 KiB	C++14(O2)	241 Bytes	2025-11-22 21:53:56
AC	林奕安	11ms	6.4 MiB	C++14(O2)	262 Bytes	2025-5-25 15:35:13
AC	高钰淏	11ms	760 KiB	C++14(O2)	212 Bytes	2026-3-29 11:15:08
AC	四(2)班朱宸宇 (LWY5)	11ms	6.6 MiB	C++14(O2)	271 Bytes	2025-8-11 15:59:41
AC	赵一杭	11ms	504 KiB	C++14(O2)	281 Bytes	2026-2-13 15:02:12
AC	叶恭树	11ms	6.7 MiB	C++14(O2)	241 Bytes	2025-7-10 15:53:15
AC	杨翼瑞	11ms	656 KiB	C++14(O2)	194 Bytes	2026-2-5 19:52:31
AC	应牧恒	11ms	6.5 MiB	C++14(O2)	229 Bytes	2025-4-30 18:20:33
AC	罗予辰	11ms	536 KiB	C++14(O2)	261 Bytes	2026-2-6 9:26:25
AC	吴昀轩	11ms	6.4 MiB	C++14(O2)	229 Bytes	2025-4-30 18:27:32
AC	曹益豪	11ms	532 KiB	C++14(O2)	235 Bytes	2025-12-27 14:20:59
AC	李沐冉	11ms	516 KiB	C++14(O2)	234 Bytes	2026-2-6 9:32:10
AC	黄歆茹	11ms	764 KiB	C++14(O2)	235 Bytes	2026-1-8 20:35:38
AC	卢群山	11ms	1.4 MiB	C++14(O2)	445 Bytes	2026-2-11 11:48:42
AC	应鼎浩	11ms	6.4 MiB	C++14(O2)	218 Bytes	2025-4-30 18:25:08
AC	应智铭	11ms	6.8 MiB	C++14(O2)	231 Bytes	2025-4-30 17:47:56
AC	叶雨枫	11ms	6.4 MiB	C++14(O2)	229 Bytes	2025-4-30 18:28:24
AC	唐润灿	11ms	776 KiB	C++14(O2)	209 Bytes	2026-1-18 13:51:19
AC	邹晨旭	11ms	504 KiB	C++14(O2)	239 Bytes	2025-12-31 18:48:49
AC	朱立	11ms	6.4 MiB	C++14(O2)	204 Bytes	2025-5-8 21:09:53
AC	陈珦宸	11ms	6.4 MiB	C++14(O2)	341 Bytes	2025-5-9 21:36:58
AC	胡煜晨	11ms	6.5 MiB	C++14(O2)	236 Bytes	2025-11-4 20:12:17
AC	黄丰晟 (AC11)	11ms	6.4 MiB	C++14(O2)	277 Bytes	2025-4-13 10:00:32
AC	李赫宸	11ms	548 KiB	C++14(O2)	258 Bytes	2026-2-7 10:14:30
AC	黄煦涵	11ms	504 KiB	C++14(O2)	209 Bytes	2026-4-4 15:40:00
AC	陈家品 (GK67)	11ms	1.1 MiB	C++14(O2)	230 Bytes	2025-12-6 8:55:18
AC	夏修泽	12ms	6.4 MiB	C++14(O2)	256 Bytes	2025-4-30 18:31:45
AC	卢君勉	12ms	1.3 MiB	C++14(O2)	275 Bytes	2026-1-28 19:23:42
AC	戴嘉言	12ms	1.1 MiB	C++14(O2)	230 Bytes	2026-2-14 15:12:42
AC	陈威廷	12ms	1.8 MiB	C++14(O2)	214 Bytes	2025-12-31 17:28:01
AC	孙怡飞	12ms	1.1 MiB	C++14(O2)	251 Bytes	2026-4-5 13:28:51
AC	江翊诚	12ms	6.4 MiB	C++14(O2)	227 Bytes	2025-4-26 21:05:38
AC	郑皓旭 (YC113)	12ms	6.3 MiB	C++14(O2)	329 Bytes	2025-4-7 19:48:05
AC	李旷兮 (XLY27)	12ms	6.4 MiB	C++14(O2)	228 Bytes	2025-5-8 19:26:01
AC	金周乐 (WC25)	13ms	6.4 MiB	C++14(O2)	239 Bytes	2025-5-24 20:40:58
AC	熊睿熙	14ms	6.5 MiB	C++14(O2)	197 Bytes	2025-4-30 17:36:11
AC	戴浩宇	21ms	6.4 MiB	C++14(O2)	220 Bytes	2025-4-26 21:52:27