求1 到 n 的累加和

状态	递交者	时间	内存	语言	代码	递交时间
AC	18796792921	13ms	512 KiB	C++17(O2)	172 Bytes	2025-12-28 15:13:29
AC	15861021069	14ms	512 KiB	C++17(O2)	180 Bytes	2025-12-7 11:17:37
AC	15896581923	15ms	512 KiB	C++17(O2)	172 Bytes	2026-2-10 15:24:22
AC	13901420420	15ms	548 KiB	C++17(O2)	180 Bytes	2026-2-8 10:04:36
AC	15952606862	17ms	512 KiB	C++17(O2)	171 Bytes	2025-12-5 19:55:34
AC	18451652600	18ms	516 KiB	C++17(O2)	159 Bytes	2026-2-7 11:30:13
AC	17368079895	18ms	540 KiB	C++17(O2)	179 Bytes	2026-1-7 16:03:40
AC	caochungui	19ms	512 KiB	C++17(O2)	186 Bytes	2025-12-4 12:52:22
AC	15252666790	21ms	540 KiB	C++17(O2)	174 Bytes	2025-12-2 19:54:33
AC	13641567801	21ms	540 KiB	C++17(O2)	172 Bytes	2025-12-4 21:19:57
AC	15052321516	22ms	540 KiB	C++17(O2)	177 Bytes	2025-12-7 15:28:50
AC	18082060086	25ms	548 KiB	C++17(O2)	171 Bytes	2025-12-2 18:48:38
AC	15996006306	26ms	516 KiB	C++17(O2)	196 Bytes	2025-11-30 13:58:20