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	2026-5-19 12:44:22
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-17 20:48:16
AC	yuziqian	-	-	71 Bytes	2026-5-19 12:54:26
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-20 13:17:29
AC	liusiyu	-	-	71 Bytes	2026-6-2 17:06:53
AC	zhangxin	-	-	71 Bytes	2026-7-10 22:11:43
AC	liuhaoran	-	-	71 Bytes	2026-5-9 17:34:19
AC	cdh	-	-	71 Bytes	2026-6-11 16:48:02
AC	lzx_yyds_2015	-	-	71 Bytes	2026-5-21 15:45:53