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	-	-	80 Bytes	2026-6-25 12:58:21
AC	wengzhaoyu8	-	-	80 Bytes	2026-5-18 13:43:10
AC	yuziqian	-	-	80 Bytes	2026-5-11 13:17:13
AC	zhengkaiyang666	-	-	80 Bytes	2026-5-11 13:48:58
AC	liusiyu	-	-	80 Bytes	2026-6-4 13:14:23
AC	liuhaoran	-	-	80 Bytes	2026-5-11 13:14:08
AC	cdh	-	-	80 Bytes	2026-6-2 16:39:42
AC	xilin2	-	-	80 Bytes	2026-6-26 20:13:24