hdu 1002 大数相加
发布时间：2021-02-06 14:04:41 所属栏目：大数据 来源：网络整理
导读：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
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? 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 = 2222222222222221110 Java代码不能带有package语句，主类必须是Main import java.util.Scanner;
import java.math.*;
public class Main {
public static void main(String args []){
Scanner input=new Scanner(System.in);
int T;
T=input.nextInt();
for(int i=1;i<=T;i++){
BigInteger a,b;
a=input.nextBigInteger();
b=input.nextBigInteger();
if(i!=1)
System.out.println();
System.out.println("Case "+i+":");
System.out.println(a+" + "+b+" = "+a.add(b));
}
}
}
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