判断闰年

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	ALT_daiborui	19ms	20.4 MiB	C++14	138 Bytes	2026-9-27 16:20:13
AC	admin	20ms	20.4 MiB	C++14	261 Bytes	2026-8-29 10:20:06
AC	ALT_jinyiqi	20ms	20.4 MiB	C++14	165 Bytes	2026-9-27 20:00:56
AC	ALT_puyi	20ms	20.4 MiB	C++14	181 Bytes	2026-9-29 7:00:41
AC	ALT_liuaimi	20ms	20.4 MiB	C++14	187 Bytes	2026-9-27 11:08:18
AC	ALT_lizihe	20ms	20.4 MiB	C++14	137 Bytes	2026-9-24 20:45:51
AC	ALT_zhangmengxuan	20ms	20.4 MiB	C++14	167 Bytes	2026-9-28 19:50:51
AC	ALT_lijinyuan	21ms	20.4 MiB	C++14	166 Bytes	2026-9-29 17:52:17
AC	ALT_wujinze	21ms	20.4 MiB	C++14	174 Bytes	2026-10-25 9:56:32