【入门】求数列的第n项的值是多少？

状态	递交者	时间	内存	语言	代码	递交时间
AC	ptxy1022	3ms	320 KiB	C++17(O2)	257 Bytes	2024-7-30 10:47:13
AC	ptxy60	3ms	324 KiB	C++17(O2)	279 Bytes	2025-3-18 20:21:08
AC	ptxy2388	3ms	412 KiB	C++17(O2)	190 Bytes	2023-11-21 21:42:02
AC	ptxy2206	3ms	536 KiB	C++17(O2)	149 Bytes	2024-5-1 20:59:42
AC	ptxy1020	3ms	536 KiB	C++17(O2)	326 Bytes	2024-5-7 19:58:07
AC	ptxy50	3ms	324 KiB	C++17(O2)	247 Bytes	2024-11-16 15:29:37
AC	ptxy1030	3ms	536 KiB	C++17(O2)	279 Bytes	2024-7-29 22:38:59
AC	chenyuze	3ms	324 KiB	C++17(O2)	169 Bytes	2024-5-3 17:10:35
AC	ruanhan	3ms	764 KiB	C++17(O2)	250 Bytes	2024-5-3 18:18:19
AC	ptxy1027	3ms	536 KiB	C++17(O2)	257 Bytes	2024-11-30 14:29:34
AC	ptxy1004	3ms	536 KiB	C++17(O2)	308 Bytes	2025-3-22 15:34:05
AC	ptxy2352	3ms	324 KiB	C++17(O2)	221 Bytes	2024-5-2 12:57:13
AC	Donghengyi	3ms	536 KiB	C++17(O2)	328 Bytes	2024-5-2 11:08:09
AC	ptxy1005	3ms	768 KiB	C++17(O2)	312 Bytes	2024-5-3 19:10:15
AC	wanghaoming	3ms	536 KiB	C++17(O2)	195 Bytes	2024-5-1 8:31:04