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	-	-	71 Bytes	2026-5-20 13:01:43
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-9 17:53:06
AC	yuziqian	-	-	71 Bytes	2026-5-9 17:32:06
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-12 12:19:38
AC	zhangyi	-	-	71 Bytes	2026-5-19 17:51:52
AC	liusiyu	-	-	71 Bytes	2026-6-2 13:52:45
AC	zhangxin	-	-	71 Bytes	2026-5-25 22:28:29
AC	liuhaoran	-	-	71 Bytes	2026-5-11 12:21:05
AC	cdh	-	-	71 Bytes	2026-6-2 13:43:04
AC	lzx_yyds_2015	-	-	71 Bytes	2026-6-2 17:51:10