C : Program to accept two matrices and add it

Program :

//c program to accept two matrices and add two matrices

#include<stdio.h>

int main()
{

    printf("Program of addition of two matrices :\n\n");

    int rows, columns;

//Get output from user for number rows and columns
    printf("Enter the number of rows : ");
    scanf("%d", &rows);
    printf("Enter the number of columns : ");
    scanf("%d", &columns);

    int mat1[rows][columns],
        mat2[rows][columns],
        result[rows][columns];

//Get output from user for to get elements in first matrix
    printf("\nEnter the elements at first matrix : \n");

    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            printf("Enter the number at %d row and %d column :", i+1, j+1 );
            scanf("%d", &mat1[i][j]);
        }
    }


//Get output from user for to get elements in second  matrix
    printf("\nEnter the elements at second matix :\n");
    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            printf("Enter the number at %d row and %d column :", i+1, j+1 );
            scanf("%d", &mat2[i][j]);
        }
    }


//Printing of first matix
    printf("\nFirst matrix : \n");

    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            printf("%d ", mat1[i][j]);
        }
        printf("\n");
    }

//Printing of second matix
    printf("\nSecond matrix : \n");

    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            printf("%d ", mat2[i][j]);
        }
        printf("\n");
    }

    //Result of the matrix

    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            result[i][j] = mat1[i][j] + mat2[i][j];//for subtraction use "-"
        }
    }

    //Pritnting result of the two matrix
    printf("\nResultant matrix : \n");

    for(int i=0; i<rows; i++)
    {
        for(int j=0; j<columns; j++)
        {
            printf("%d ", result[i][j]);
        }
        printf("\n");
    }


    return 0;
}

Output :

Note : For subtracting use “-”.