摘要：题目描述： 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 Spec 阅读全文

摘要：问题描述： 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 le 阅读全文

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

摘要：问题描述： This time, you are supposed to find A+B where A and B are two polynomials. Input Specification: Each input file contains one test case. Each cas 阅读全文

摘要：问题描述 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 so 阅读全文