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 13:02:45
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-11 13:17:04
AC	yuziqian	-	-	71 Bytes	2026-5-9 17:34:15
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-11 13:37:35
AC	zhangyi	-	-	71 Bytes	2026-5-19 17:53:50
AC	liusiyu	-	-	71 Bytes	2026-6-4 12:29:29
AC	liuhaoran	-	-	71 Bytes	2026-5-11 12:19:51
AC	cdh	-	-	71 Bytes	2026-6-2 13:53:08
AC	lzx_yyds_2015	-	-	71 Bytes	2026-6-4 12:36:34