摘要:
心情不好就写两个题,然后发个题解就完事了啊。 题目描述 There are exactly nn towns in Byteotia. Some towns are connected by bidirectional roads. There are no crossroads outside t 阅读全文
摘要:
万圣节又要到了(大雾),可恶机智的农场主又要给欺骗奶牛们发糖果了。 题目描述 Every year in Wisconsin the cows celebrate the USA autumn holiday of Halloween by dressing up in costumes and c 阅读全文