求 1+2+3+...+N 的值

状态	递交者	时间	内存	语言	代码	递交时间
AC	fs247liwenxuan1	37ms	808 KiB	C++17(O2)	135 Bytes	2024-10-30 17:27:40
AC	rc245liuyutong1	38ms	808 KiB	C++17(O2)	180 Bytes	2024-8-29 9:47:26
AC	rc246chenjunzhou1	39ms	804 KiB	C++17(O2)	154 Bytes	2024-10-29 21:36:22
AC	rc245zhangxiaoyu1	39ms	808 KiB	C++17(O2)	151 Bytes	2024-8-22 21:16:01
AC	rc2411zc1	39ms	804 KiB	C++17(O2)	172 Bytes	2024-3-13 21:45:32
AC	rc245kangluoling1	40ms	804 KiB	C++17(O2)	189 Bytes	2024-3-6 19:32:44
AC	rc245fengwenjie1	40ms	808 KiB	C++17(O2)	158 Bytes	2024-8-31 16:37:06
AC	rc246dujinning1	40ms	804 KiB	C++17(O2)	111 Bytes	2024-3-27 19:26:59
AC	rc246fengxiang1	41ms	808 KiB	C++17(O2)	141 Bytes	2024-3-4 21:34:55
AC	rc244wangjiayou1	47ms	808 KiB	C++17(O2)	156 Bytes	2024-6-10 16:34:08