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 12:45:44
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-17 20:49:54
AC	yuziqian	-	-	71 Bytes	2026-5-19 12:46:43
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-20 13:19:03
AC	liusiyu	-	-	71 Bytes	2026-6-2 17:08:20
AC	liuhaoran	-	-	71 Bytes	2026-5-9 17:40:07
AC	cdh	-	-	71 Bytes	2026-6-2 17:48:53
AC	lzx_yyds_2015	-	-	71 Bytes	2026-5-21 16:31:54