摘要： problem tip anwser include using namespace std; string firstName, lastName, firstTime, lastTime; bool CompTime(int a1, int b1, int c1, int a2, int b2, 阅读全文

摘要： problem 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 Sp 阅读全文

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