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 13:00:43
AC	wengzhaoyu8	-	-	71 Bytes	2026-5-9 17:51:38
AC	yuziqian	-	-	71 Bytes	2026-5-9 17:30:11
AC	zhengkaiyang666	-	-	71 Bytes	2026-5-12 12:18:26
AC	zhangyi	-	-	71 Bytes	2026-5-19 12:26:37
AC	liusiyu	-	-	71 Bytes	2026-6-2 13:49:02
AC	zhangxin	-	-	71 Bytes	2026-5-19 17:54:40
AC	liuhaoran	-	-	71 Bytes	2026-5-11 12:22:02
AC	lzx_yyds_2015	-	-	71 Bytes	2026-6-2 17:49:36