摘要： Given a non-negative integer N, your task is to compute the sum of all the digits of N, and output every digit of the sum in English.Input Specificati 阅读全文

摘要： 题目 A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child.Input Specification: Each i 阅读全文

摘要： 题目： 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 som 阅读全文

摘要： 实验室的服务器有很多使用限制，而且没有指南，许多使用方法只能靠自己摸索。 实验室服务器对于普通用户的主要限制是： 1. 不能使用 sudo 命令 2. 只能在/home/username（）即username@192.168.20.0:~/）和/pub下的目录进行读写 3. 使用 wget 等命令直 阅读全文