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Link for the Problem – Java BigInteger – Hacker Rank Solution

Java BigInteger – Hacker Rank Solution

Problem :

In this problem, you have to add and multiply huge numbers! These numbers are so big that you can’t contain them in any ordinary data types like a long integer. Use the power of Java’s BigInteger class and solve this problem.

Input Format

There will be two lines containing two numbers, a and b.

Constraints

a and b are non-negative integers and can have maximum 200 digits.

Output Format

Output two lines. The first line should contain a+b, and the second line should contain a*b. Don’t print any leading zeros.

Sample Input

1234
20

Sample Output

1254
24680

Explanation

1234+20 = 1254
1234*20 = 24680

Java BigInteger – Hacker Rank Solution

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

public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        
        Scanner userInput = new Scanner(System.in);
        BigInteger a;
        BigInteger b;
        BigInteger sum = BigInteger.valueOf(0);
        BigInteger product = BigInteger.valueOf(0);
        
        a = new BigInteger(userInput.nextLine());
        b = new BigInteger(userInput.nextLine());
        
        sum = sum.add(a);
        sum = sum.add(b);
        product = a.multiply(b);
        
        System.out.println(sum);
        System.out.println(product);
    }
}