A + B Problem II

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)
Total Submission(s): 241933    Accepted Submission(s): 46646

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

题意：

高精度a+b

题解

java大法好！

import java.util.*;
import java.io.*;
import java.math.*;   

public class Main{
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int t=in.nextInt();
        for(int i=1;i<=t;i++)
        {
            if(i!=1)
                System.out.println();
            BigInteger a = in.nextBigInteger();
            BigInteger b = in.nextBigInteger();
            System.out.println("Case "+i+":");
            System.out.println(a+" + "+b+" = "+a.add(b));
        }
    }
}