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	2026-5-19 12:55:07
AC	wengzhaoyu8	-	-	80 Bytes	2026-5-17 21:10:18
AC	yuziqian	-	-	80 Bytes	2026-5-20 13:42:25
AC	liusiyu	-	-	80 Bytes	2026-6-2 13:47:52
AC	liuhaoran	-	-	80 Bytes	2026-5-9 17:46:30
AC	cdh	-	-	80 Bytes	2026-6-2 13:39:54
AC	lzx_yyds_2015	-	-	80 Bytes	2026-5-21 17:41:33