都是偶数吗？

状态	递交者	时间	内存	语言	代码	递交时间
AC	hongpingzhi	17ms	540 KiB	C++14(O2)	160 Bytes	2026-6-8 20:04:13
AC	董宇辰	18ms	616 KiB	C++14(O2)	149 Bytes	2026-6-7 12:24:40
AC	fangweiyuan	18ms	552 KiB	C++14(O2)	149 Bytes	2026-8-27 13:13:38
AC	冯一然	18ms	532 KiB	C++14(O2)	183 Bytes	2026-6-7 19:42:08
AC	文豪	18ms	596 KiB	C++14(O2)	203 Bytes	2026-6-6 14:33:14
AC	欧致远	18ms	732 KiB	C++14(O2)	153 Bytes	2026-6-7 9:39:20
AC	liuguoyi	18ms	540 KiB	C++14(O2)	153 Bytes	2026-6-6 17:27:21
AC	虞绍荣	18ms	636 KiB	C++14(O2)	189 Bytes	2026-9-2 20:38:11
AC	wangzixu	18ms	504 KiB	C++14(O2)	161 Bytes	2026-6-6 23:34:50
AC	夏烨辰	18ms	512 KiB	C++14(O2)	208 Bytes	2026-6-7 21:08:54
AC	储瞻宸	18ms	512 KiB	C++14(O2)	182 Bytes	2026-6-6 22:28:50
AC	wangzhiyi	18ms	532 KiB	C++14(O2)	153 Bytes	2026-6-27 21:31:08
AC	张正煊	18ms	564 KiB	C++14(O2)	204 Bytes	2026-6-30 14:58:27
AC	孙志堃	18ms	560 KiB	C++14(O2)	157 Bytes	2026-6-7 9:55:15
AC	陶忠兴	19ms	532 KiB	C++14(O2)	156 Bytes	2026-6-7 18:53:33
AC	吕伊晗	19ms	536 KiB	C++14(O2)	142 Bytes	2026-6-7 10:27:31
AC	yanyixi	19ms	564 KiB	C++14(O2)	242 Bytes	2026-8-13 20:52:47
AC	陈锦亚	19ms	752 KiB	C++14(O2)	201 Bytes	2026-6-6 21:23:01
AC	张馨月	19ms	548 KiB	C++14(O2)	144 Bytes	2026-9-28 12:50:46
AC	zhaoerya	19ms	580 KiB	C++14(O2)	154 Bytes	2026-6-6 19:27:51
AC	王晨宇	19ms	508 KiB	C++14(O2)	182 Bytes	2026-6-7 21:20:39
AC	褚赢	20ms	548 KiB	C++14(O2)	142 Bytes	2026-9-7 17:33:28
AC	Frank	20ms	548 KiB	C++14(O2)	166 Bytes	2026-9-30 13:04:51
AC	lizijie666	20ms	796 KiB	C++14(O2)	186 Bytes	2026-9-24 17:43:42
AC	孔维宸	20ms	552 KiB	C++14(O2)	163 Bytes	2026-9-14 12:40:05
AC	刘皓轩	21ms	764 KiB	C++14(O2)	152 Bytes	2026-9-29 12:48:36