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 12:45:17
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-17 20:49:25
AC	yuziqian	-	-	71 Bytes	2026-5-19 12:51:21
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-20 13:18:18
AC	liusiyu	-	-	71 Bytes	2026-6-2 17:07:49
AC	liuhaoran	-	-	71 Bytes	2026-5-9 17:38:53
AC	cdh	-	-	71 Bytes	2026-6-2 17:12:41
AC	lzx_yyds_2015	-	-	71 Bytes	2026-5-21 16:30:58