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	TS_1	31ms	848 KiB	C++17(O2)	141 Bytes	2023-12-10 16:37:51
AC	TS_1	31ms	800 KiB	C++17(O2)	174 Bytes	2023-12-12 20:00:53
AC	jiajingwen	31ms	832 KiB	C++17(O2)	174 Bytes	2023-12-12 19:51:04
AC	jiajingwen	31ms	772 KiB	C++17(O2)	101 Bytes	2023-12-14 19:47:57
AC	zhangyongwu	31ms	796 KiB	C++17(O2)	188 Bytes	2023-12-14 19:37:50
AC	geyutong	31ms	688 KiB	C++17(O2)	117 Bytes	2023-12-19 20:22:43
AC	hanweishen	31ms	728 KiB	C++17(O2)	125 Bytes	2023-12-21 19:03:21
AC	liuanshi	31ms	1.5 MiB	C++17(O2)	129 Bytes	2023-12-19 20:33:26
AC	fupeixin	31ms	764 KiB	C++17(O2)	189 Bytes	2023-12-12 20:31:03
AC	luBarry	31ms	808 KiB	C++17(O2)	182 Bytes	2023-12-12 18:49:31
AC	M_I_H_U_Y_O	31ms	836 KiB	C++17(O2)	130 Bytes	2023-12-14 19:46:11
AC	wasdjio	31ms	760 KiB	C++17(O2)	112 Bytes	2023-12-19 21:12:56
AC	wasdjio	31ms	796 KiB	C++17(O2)	123 Bytes	2023-12-19 21:15:35
AC	gcx1301	32ms	760 KiB	C++17(O2)	131 Bytes	2023-12-12 20:24:22