Link http://acm.hust.edu.cn/vjudge/contest/121539#problem/A Description standard input/output Haneen is trying to solve an easy problem given by Dr. Ibrahim in the Algorithms course. The problem is to find the lexicographically smallest Longest Commo…

The Unsolvable Problem 题目链接:http://acm.hust.edu.cn/vjudge/problem/visitOriginUrl.action?id=45783 题意: 给定一个整数n(2 < = x < = 10^9),我们应该找到一双正整数a,b,满足a + b = n和a,b的最小公倍数是尽可能大: 输出这个最大的最小公倍数. 题目要求要T组案例. 案例: Sampl Input 3 2 3 4 Sample Output 1 2 3 解题思路: 由于2&…

A - Noldbach problem 题面链接 http://codeforces.com/contest/17/problem/A 题面 Nick is interested in prime numbers. Once he read about Goldbach problem. It states that every even integer greater than 2 can be expressed as the sum of two primes. That got Nic…

Bob and math problem Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 401    Accepted Submission(s): 149 Problem Description Recently, Bob has been thinking about a math problem.There are N Digit…

Problem 2 --- Add Two Numbers 简单的模拟题. Problem 3 --- Longest Substring Without Repeating Characters 题意: 给定一个字符串序列,找出最长无重复的子序列.如"abcabcbb"的最长不重复子序列为"abc" 思路: 首先分配一个hashTable[256],里面保存每个字符在当前字符序列中的位置,同时设置left变量表示当前无重复字符串的最左端位置.然后从头到尾扫面字符串…

An Easy Problem for Elfness Time Limit: 5000/2500 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 1148    Accepted Submission(s): 234 Problem Description Pfctgeorge is totally a tall rich and handsome guy. He plans t…

B. Andrey and Problem time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Andrey needs one more problem to conduct a programming contest. He has n friends who are always willing to help. He ca…

100 - The 3n+1 problem (3n+1 问题) /* * 100 - The 3n+1 problem (3n+1 问题) * 作者 仪冰 * QQ 974817955 * * [问题描述] * 考虑如下的序列生成算法:从整数 n 开始,如果 n 是偶数,把它除以 2:如果 n 是奇数, * 把它乘 3 加1.用新得到的值重复上述步骤,直到 n = 1 时停止. * 例如,n = 22 时该算法生成的序列是: * 22,11,34,17,52,26,13,40,20,10,5,…

Description Noldbach problem time limit per test: 2 seconds memory limit per test: 64 megabytes input: standard input output: standard output Nick is interested in prime numbers. Once he read about Goldbach problem. It states that every even integer…

B. Andrey and Problem time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Andrey needs one more problem to conduct a programming contest. He has n friends who are always willing to help. He ca…