次幂：判断一个数是否是2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 18:27:50
AC	Jiange	3ms	2.1 MiB	C++	322 Bytes	2025-5-4 11:12:10
AC	yangchunshuo	3ms	2.1 MiB	C++	237 Bytes	2025-4-26 10:48:27
AC	huangtianze	3ms	2.1 MiB	C++	261 Bytes	2025-4-19 20:32:56
AC	zhangxuanning	3ms	2.1 MiB	C++	177 Bytes	2025-8-8 14:48:03
AC	youjianhui	3ms	2.1 MiB	C++	180 Bytes	2025-7-5 21:07:13
AC	luozibo	3ms	2.1 MiB	C++	235 Bytes	2025-6-29 12:07:13
AC	xiaozhan	3ms	2.1 MiB	C++	248 Bytes	2025-6-29 12:24:20
AC	huangyongjin	3ms	2.1 MiB	C++	242 Bytes	2025-8-5 19:30:41
AC	zhaotongyu	4ms	2.1 MiB	C++	404 Bytes	2025-4-19 20:15:51
AC	linjiahui	4ms	2.1 MiB	C++	233 Bytes	2025-6-29 12:09:50
AC	huangzirui	4ms	2.1 MiB	C++	286 Bytes	2025-4-19 19:49:47
AC	chendongyi	4ms	2.1 MiB	C++	206 Bytes	2025-4-19 19:44:58
AC	liangjunfeng	4ms	2.1 MiB	C++	170 Bytes	2025-8-8 14:50:25
AC	zhangweide	4ms	2.1 MiB	C++	208 Bytes	2025-8-8 14:48:51
AC	heyuxuan	4ms	2.1 MiB	C++	202 Bytes	2025-4-19 20:39:39
AC	dengminhao	4ms	2.1 MiB	C++	258 Bytes	2025-7-22 19:40:00
AC	wangjunhao1	4ms	2.1 MiB	C++	168 Bytes	2025-8-8 14:55:33
AC	pansiyu	4ms	2.1 MiB	C++	298 Bytes	2025-6-20 18:09:55
AC	cheng	4ms	2.1 MiB	C++	229 Bytes	2025-6-29 12:18:24
AC	weizhichen	4ms	2.1 MiB	C++	198 Bytes	2025-7-30 19:49:40
AC	laoweijia	4ms	2.1 MiB	C++	228 Bytes	2025-8-5 19:24:12
AC	chenxiaojun	19ms	700 KiB	C++14(O2)	414 Bytes	2025-12-28 16:02:08
AC	wangsiyuan	20ms	736 KiB	C++14(O2)	195 Bytes	2025-12-13 14:58:46
AC	zhouzixuan	20ms	540 KiB	C++14(O2)	284 Bytes	2025-12-28 16:00:52
AC	chenjunfeng	20ms	528 KiB	C++14(O2)	192 Bytes	2026-2-4 15:24:54
AC	boluo	21ms	504 KiB	C++14(O2)	241 Bytes	2025-10-2 15:01:54
AC	zouxiaolei	21ms	504 KiB	C++14(O2)	319 Bytes	2025-12-5 19:53:23
AC	chenchiyu	21ms	532 KiB	C++11	289 Bytes	2025-11-30 9:04:59
AC	chenjiahong	21ms	536 KiB	C++14(O2)	210 Bytes	2025-12-13 14:57:52
AC	weihaolin	21ms	532 KiB	C++14(O2)	180 Bytes	2025-12-21 8:56:30
AC	liangyuanzhen	22ms	760 KiB	C++14(O2)	168 Bytes	2026-2-4 15:02:32
AC	LEO8	22ms	508 KiB	C++14(O2)	299 Bytes	2025-10-8 8:45:18
AC	liwenxin	22ms	636 KiB	C++14(O2)	187 Bytes	2026-2-4 15:22:34
AC	yanghejing	22ms	828 KiB	C++14(O2)	258 Bytes	2026-2-25 12:03:32
AC	wupeichen	22ms	512 KiB	C++14(O2)	172 Bytes	2026-2-4 15:23:18
AC	yangsirui	22ms	588 KiB	C++14(O2)	212 Bytes	2025-12-13 14:54:03
AC	chenjinnan	22ms	508 KiB	C++14(O2)	169 Bytes	2025-11-23 17:47:35
AC	tangwenxi	22ms	504 KiB	C++14(O2)	306 Bytes	2025-12-28 16:01:36
AC	mamingyuan	23ms	544 KiB	C++14(O2)	194 Bytes	2026-2-9 11:14:41
AC	scanner	23ms	580 KiB	C++14(O2)	215 Bytes	2026-2-11 14:21:03
AC	fangliangxin	23ms	508 KiB	C++14(O2)	306 Bytes	2025-10-2 15:16:58
AC	zhangchenrui	24ms	788 KiB	C++14(O2)	244 Bytes	2025-10-2 14:54:48
AC	huyang	25ms	580 KiB	C++14(O2)	304 Bytes	2025-10-4 15:20:03