枚举排列（递归实现排列型枚举）

状态	递交者	时间	内存	语言	代码	递交时间
AC	jiangxi666	26ms	692 KiB	C++17(O2)	565 Bytes	2025-1-17 9:25:31
AC	yuankaixiang666	27ms	808 KiB	C++17(O2)	340 Bytes	2025-1-17 15:44:01
AC	maodeqing009351	27ms	808 KiB	C++17(O2)	565 Bytes	2025-1-20 10:17:16
AC	zxy091721	27ms	764 KiB	C++17(O2)	565 Bytes	2025-1-17 15:32:04
AC	lyc120521	28ms	804 KiB	C++17(O2)	388 Bytes	2025-1-17 14:15:36
AC	Aventurine	28ms	808 KiB	C++17(O2)	410 Bytes	2025-1-17 14:59:52
AC	shenchuanqiang	29ms	808 KiB	C++17(O2)	343 Bytes	2025-1-18 11:05:20
AC	MsgNotFound	54ms	808 KiB	C++17(O2)	402 Bytes	2025-1-17 9:11:59
AC	KevinWang	408ms	808 KiB	C++11	668 Bytes	2025-1-16 18:28:32