摘要：题目 Z 国的骑士团是一个很有势力的组织，帮会中汇聚了来自各地的精英。他们劫富济贫，惩恶扬善，受到社会各界的赞扬。 最近发生了一件可怕的事情，邪恶的 Y 国发动了一场针对 Z 国的侵略战争。战火绵延五百里，在和平环境中安逸了数百年的 Z 国又怎能抵挡的住 Y 国的军队。于是人们把所有的希望都寄托在了 阅读全文

摘要：题目 \ define xhxj (Xin Hang senior sister(学姐)) If you do not know xhxj, then carefully reading the entire description is very important. As the stronge 阅读全文

摘要：题目 Volodya is an odd boy and his taste is strange as well. It seems to him that a positive integer number is beautiful if and only if it is divisible 阅读全文