判断题（每题 2 分，共 20 分）

状态	递交者	时间	内存	代码	递交时间
AC	chenaijin	-	-	80 Bytes	2026-6-23 13:24:47
AC	wengzhaoyu8	-	-	80 Bytes	2026-5-17 20:58:11
AC	yuziqian	-	-	80 Bytes	2026-5-20 12:32:50
AC	zhengkaiyang666	-	-	80 Bytes	2026-5-20 13:24:24
AC	liusiyu	-	-	80 Bytes	2026-6-2 17:51:24
AC	zhangxin	-	-	80 Bytes	2026-7-10 22:17:04
AC	liuhaoran	-	-	80 Bytes	2026-5-9 17:45:07
AC	cdh	-	-	80 Bytes	2026-6-11 16:48:38
AC	lzx_yyds_2015	-	-	80 Bytes	2026-5-21 16:50:44