2016年11月12日
1004. Counting Leaves (30)
摘要： 1004. Counting Leaves (30) A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. In 阅读全文
posted @ 2016-11-12 18:59 Mel年 阅读(1515) 评论(0) 推荐(0)
1003. Emergency (25)
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
posted @ 2016-11-12 17:16 Mel年 阅读(372) 评论(0) 推荐(0)