hdu1002-A + B Problem II

http://acm.hdu.edu.cn/showproblem.php?pid=1002

A + B Problem II

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 244116    Accepted Submission(s): 47080

Problem Description

I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.

 

Input

The first line of the input contains an integer T(1<=T<=20) which means the number of test cases. Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large, that means you should not process them by using 32-bit integer. You may assume the length of each integer will not exceed 1000.

 

Output

For each test case, you should output two lines. The first line is "Case #:", # means the number of the test case. The second line is the an equation "A + B = Sum", Sum means the result of A + B. Note there are some spaces int the equation. Output a blank line between two test cases.

 

Sample Input

2

1 2

112233445566778899 998877665544332211

 

Sample Output

Case 1: 1 + 2 = 3

Case 2: 112233445566778899 + 998877665544332211 = 1111111111111111110

 

 

 

代码：

import java.util.*;    
import java.math.*;    
import java.io.*;    
public class  Main       
{    
    public static void main( String[] args  )    
    {    
       Scanner cin=new Scanner(new BufferedInputStream (System.in)  );      
       BigInteger a,b,c;                     
       int t,num=0;    
       t=cin.nextInt();                    
       while( t-->=1 )    
       {    
           num++;     
           a=cin.nextBigInteger();                
           b=cin.nextBigInteger();    
           c=a.add(b);    
           System.out.println("Case "+num+":");            
           System.out.println(a + " + " + b + " = "+c);    
           if(t!=0)System.out.println("");    
       }    
    }    
}