Question

Write a C++ program that computes the sum of two square matrices using a two-dimensional array. Generate random values using the rand () function.

 

SAMPLE OUTPUT:

 

matrix 1

1

2

3

4

5

6

1

2

3

 

matrix 2

3

4

5

8

7

6

9

10

11

 

Sum of matrices is

4

6

8

12

11

12

10

12

14

Answer 1

#include <iostream>
using namespace std;
int main()
{
	int firstM[3][3];
	int secondM[3][3];
	for (int i = 0; i < 3; i++)
	{
		for (int j = 0; j < 3; j++)
		{
			firstM[i][j] = rand()%10;
			secondM[i][j] = rand()%10;
		}
	}
	cout<<"First matrix: \n";
		for (int i = 0; i < 3; i++)
	{
		for (int j = 0; j < 3; j++)
		{
			cout<<firstM[i][j]<<" ";
		}
		cout<<endl;
	}
	cout<<"Second matrix: \n";
		for (int i = 0; i < 3; i++)
	{
		for (int j = 0; j < 3; j++)
		{
			cout<<secondM[i][j]<<" ";
		}
		cout<<endl;
	}
	cout<<"Sum matrix: \n";
		for (int i = 0; i < 3; i++)
	{
		for (int j = 0; j < 3; j++)
		{
			cout<<secondM[i][j]+firstM[i][j]<<" ";
		}
		cout<<endl;
	}
	return 0;
}