package Main; //import java.io.InputStream; import java.math.BigDecimal; import java.util.Scanner; public class Main { public static void main(String[] args) { int _case; BigDecimal a,b; a=new BigDecimal("0"); b=new BigDecimal("0"); Sc…

http://acm.hdu.edu.cn/showproblem.php?pid=1002 PE   由于最后一个CASE不须要输出空行 import java.math.BigInteger; import java.util.Scanner; public class Main { public static void main(String args[]){ Scanner in = new Scanner(System.in); int ncase; ncase = in.nextIn…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1047 题目描述: 题意有点绕,但是仔细的读了后就发现是处理大数相加的问题.注意:输入数据有多组,每组输入要用一个t来控制输入的模块,每个模块的输入以0来结束.换句话说,有多少模块,输出就有多少个VeryLongInteger. 代码实现: import java.math.BigInteger; import java.util.Scanner; public class Hdu1047 { pub…

import java.math.BigInteger; import java.util.Scanner; public class Bignum{    public static void main(String[] args) {        Scanner s=new Scanner(System.in);        BigInteger a=new BigInteger("0");        BigInteger b=new BigInteger("0&…

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=1715 大菲波数 Time Limit: 1000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 22523    Accepted Submission(s): 8096 Problem Description Fibonacci数列,定义如下:f(1)=f(2)=1f(…

大菲波数 Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 17352 Accepted Submission(s): 5778 Problem Description Fibonacci数列,定义如下:f(1)=f(2)=1f(n)=f(n-1)+f(n-2) n>=3.计算第n项Fibonacci数值.   Input 输入第一行为一个整数N…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1250 题目描述: 题目大意是:已知一个Hat's Fibonacci序列,该序列满足F(1) = 1, F(2) = 1, F(3) = 1,F(4) = 1, F(n>4) = F(n - 1) + F(n-2) + F(n-3) + F(n-4); 此题用java的BigInteger处理很方便,但是因为我在处理F(n>4) = F(n - 1) + F(n-2) + F(n-3) + F(n…

HDU 4927 −ai,直到序列长度为1.输出最后的数. 思路:这题实在是太晕了,比赛的时候搞了四个小时,从T到WA,唉--对算组合还是不太了解啊.如今对组合算比較什么了-- import java.io.*; import java.math.*; import java.util.*; public class Main { public static void main(String[] args) { Scanner cin=new Scanner (new BufferedInput…

题目大意:输入n组数据,每组数据中又有若干长度不大于100的整数,以0结束每组数据的输入,求每组中数据之和.每两组数据输入之间有一行空格,输出也是如此. Integer Inquiry Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 17770 Accepted Submission(s): 4628 Problem Description O…

A + B Problem II Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 318065    Accepted Submission(s): 61825 Problem Description I have a very simple problem for you. Given two integers A and B, you…