次幂：判断一个数是否是3的幂

状态	递交者	时间	内存	语言	代码	递交时间
AC	YAT	3ms	2.1 MiB	C++	353 Bytes	2025-4-10 18:33:18
AC	zhangxuanning	3ms	2.1 MiB	C++	177 Bytes	2025-8-8 14:48:59
AC	luozibo	3ms	2.1 MiB	C++	235 Bytes	2025-6-29 12:11:13
AC	pansiyu	3ms	2.1 MiB	C++	337 Bytes	2025-5-21 14:43:31
AC	huangyongjin	3ms	2.1 MiB	C++	242 Bytes	2025-8-6 18:45:47
AC	linjiahui	4ms	2.1 MiB	C++	231 Bytes	2025-6-28 0:12:59
AC	liangyuanzhen	4ms	2.1 MiB	C++	218 Bytes	2025-7-17 17:25:28
AC	liangjunfeng	4ms	2.1 MiB	C++	170 Bytes	2025-8-8 14:50:56
AC	zhangweide	4ms	2.1 MiB	C++	208 Bytes	2025-8-8 14:49:35
AC	youjianhui	4ms	2.1 MiB	C++	180 Bytes	2025-7-5 21:10:43
AC	dengminhao	4ms	2.1 MiB	C++	258 Bytes	2025-7-22 19:39:08
AC	wangjunhao1	4ms	2.1 MiB	C++	168 Bytes	2025-8-8 15:12:56
AC	lizhengyang	4ms	2.1 MiB	C++	254 Bytes	2025-6-21 21:41:26
AC	weizhichen	4ms	2.1 MiB	C++	314 Bytes	2025-7-30 20:03:36
AC	chenchiyu	18ms	508 KiB	C++11	289 Bytes	2025-11-30 9:06:03
AC	weihaolin	18ms	532 KiB	C++14(O2)	180 Bytes	2025-12-21 8:59:23
AC	tangwenxi	19ms	532 KiB	C++14(O2)	306 Bytes	2025-12-28 16:01:54
AC	chenxiaojun	19ms	532 KiB	C++14(O2)	414 Bytes	2025-12-28 16:02:49
AC	zhouzixuan	19ms	648 KiB	C++14(O2)	284 Bytes	2025-12-28 16:02:09
AC	huyang	19ms	508 KiB	C++14(O2)	304 Bytes	2025-10-4 15:21:00
AC	chenjiahong	19ms	572 KiB	C++14(O2)	210 Bytes	2025-12-13 14:59:23
AC	wangsiyuan	19ms	504 KiB	C++14(O2)	195 Bytes	2025-12-13 14:59:29
AC	yangsirui	19ms	544 KiB	C++14(O2)	209 Bytes	2025-12-13 14:57:02
AC	LEO8	20ms	588 KiB	C++14(O2)	299 Bytes	2025-10-8 8:46:17
AC	zouxiaolei	20ms	516 KiB	C++14(O2)	319 Bytes	2025-12-5 19:53:52
AC	chenjinnan	20ms	540 KiB	C++14(O2)	169 Bytes	2025-11-23 17:48:08
AC	fangliangxin	21ms	592 KiB	C++14(O2)	306 Bytes	2025-10-2 15:34:18
AC	boluo	22ms	504 KiB	C++14(O2)	241 Bytes	2025-10-2 15:02:28
AC	zhangchenrui	22ms	508 KiB	C++14(O2)	335 Bytes	2025-10-2 15:20:12