m0_48118006的博客

At the beginning of every day, the first person who signs in the computer room will unlock the door, and the last one who signs out will lock the door. Given the records of signing in's and out's, you are supposed to find the ones who have unlocked and loc

Given a non-negative integerN, your task is to compute the sum of all the digits ofN, and output every digit of the sum in English.Input Specification:Each input file contains one test case. Each case occupies one line which contains anN(≤10100)....

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 input file contains one test case. Each case starts with a line containing0<N<100, the number of nod.

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 roads. Amount of rescue teams in each city and the length of each road between any pair of cities are marked

This time, you are supposed to findA+BwhereAandBare two polynomials.Input Specification:Each input file contains one test case. Each case occupies 2 lines, and each line contains the information of a polynomial:KN1​aN1​​N2​aN2​​...NK​aNK...

Calculatea+band output the sum in standard format -- that is, the digits must be separated into groups of three by commas (unless there are less than four digits).Input Specification:Each input file contains one test case. Each case contains a pair o..