摘要： 题目描述 协会活动为了活跃气氛，组织者举行了一个别开生面、奖品丰厚的抽奖活动，这个活动的具体要求是这样的：首先，所有参加晚会的人员都将一张写有自己名字的字条放入抽奖箱中；然后，待所有字条加入完毕，每人从箱中取一个字条；最后，如果取得的字条上写的就是自己的名字，那么“恭喜你，中奖了！” 大家可以想象一 阅读全文

摘要： Problem Description Recently in Teddy's hometown there is a competition named "Cow Year Blow Cow".N competitors had took part in this competition.The 阅读全文

摘要： Problem Description A murder happened in the hotel. As the best detective in the town, you should examine all the N rooms of the hotel immediately. Ho 阅读全文