计算 2 的幂

状态	递交者	时间	内存	代码	递交时间
AC	heyixuan0201	31ms	808 KiB	119 Bytes	2023-9-23 9:08:07
AC	zhoushengchun	31ms	764 KiB	276 Bytes	2023-9-28 16:08:50
AC	chuxinmeng1008	39ms	684 KiB	121 Bytes	2023-7-4 8:42:53
AC	gaolengdeqingwa.	40ms	728 KiB	232 Bytes	2023-6-13 20:27:08
AC	zhoushengchun	40ms	728 KiB	174 Bytes	2023-6-12 21:03:18