乐逍遥xwl

摘要： Problem Description 在每年的校赛里，所有进入决赛的同学都会获得一件很漂亮的t-shirt。但是每当我们的工作人员把上百件的衣服从商店运回到赛场的时候，却是非常累的！所以现在他们想要寻找最短的从商店到赛场的路线，你可以帮助他们吗？ Input 输入包括多组数据。每组数据第一行是两个 阅读全文

摘要： Calculate a+b and output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less tha 阅读全文

摘要： As an emergency rescue team leader of a city, you are given a special map of your country. The map shows several scattered cities connected by some ro 阅读全文