求前 x 个数字的和

状态	递交者	时间	内存	语言	代码	递交时间
AC	lijianan	30ms	2.1 MiB	C++98	320 Bytes	2026-4-22 13:32:30
AC	zhangziheng	43ms	3.5 MiB	C++98	376 Bytes	2026-3-27 12:58:35
AC	zhangyi	150ms	1.4 MiB	C++98(O2)	218 Bytes	2026-4-28 17:43:17
AC	zhangruoyi	166ms	3.5 MiB	C++98(O2)	287 Bytes	2026-3-27 13:01:09
AC	liuhaoran	168ms	2.1 MiB	C++14	314 Bytes	2026-4-9 17:46:11
AC	luohao	171ms	2.7 MiB	C++17(O2)	257 Bytes	2026-2-11 20:38:02
AC	liangluoquan	172ms	1.9 MiB	C++14(O2)	271 Bytes	2026-3-27 13:00:07
AC	zhangxin	182ms	3.5 MiB	C++14(O2)	254 Bytes	2026-4-21 13:21:10
AC	zhangyisi	184ms	1.6 MiB	C++17(O2)	270 Bytes	2026-4-7 22:00:06
AC	wengzhaoyu8	189ms	2 MiB	C++14	282 Bytes	2026-4-7 17:06:01
AC	zhongjunnan	234ms	2.3 MiB	C++11(O2)	309 Bytes	2026-5-21 14:54:56
AC	zhangjunyu	251ms	2.1 MiB	C++17(O2)	290 Bytes	2026-5-28 12:36:46
AC	zhaozhiyi	251ms	1.4 MiB	C++17(O2)	249 Bytes	2026-5-21 17:40:44
AC	shaojianle	254ms	2.4 MiB	C++98(O2)	275 Bytes	2026-6-3 13:42:59
AC	huangxiaoyu	255ms	3 MiB	C++14(O2)	291 Bytes	2026-5-7 12:34:20