sum_of_two_arrays.java

import java.util.*;

public class sum_of_two_arrays{
	public static void main(String args[]) throws Exception{
		Scanner scn = new Scanner(System.in);

		int n1 = scn.nextInt();
		int[] a1 = new int[n1];

		for(int i = 0; i < a1.length; i++){
			a1[i] = scn.nextInt();
		}

		int n2 = scn.nextInt();

		int[] a2 = new int[n2];

		for(int i = 0; i < a2.length; i++){
			a2[i] = scn.nextInt();
		}


		int[] sum = new int[n1 > n2? n1 : n2];

		int c = 0;

		int i = a1.length - 1;

		int j = a2.length - 1;

		int k = sum.length - 1;

		while(k >= 0){
			int d = c;
			if(i >= 0){
				d += a1[i];
			}

			if(j >= 0){
				d += a2[j];
			}

			c = d / 10;

			d = d % 10;

			sum[k] = d;

			i--;
			j--;
			k--;
		}

		if(c != 0){
			System.out.println(c);
		}

		for(int val:sum){
			System.out.println(val);
		}
 	}
}