Matrix addition

en, the program adds these two matrices, saves it in another matrix (two-dimensional array) and displays it on the screen.

Example: Program to Add Two Matrices
#include <stdio.h>
int main(){
    int r, c, a[100][100], b[100][100], sum[100][100], i, j;
    printf("Enter number of rows (between 1 and 100): ");
    scanf("%d", &r);
    printf("Enter number of columns (between 1 and 100): ");
    scanf("%d", &c);
    printf("\nEnter elements of 1st matrix:\n");
    for(i=0; i<r; ++i)
        for(j=0; j<c; ++j)
        {
            printf("Enter element a%d%d: ",i+1,j+1);
            scanf("%d",&a[i][j]);
        }
    printf("Enter elements of 2nd matrix:\n");
    for(i=0; i<r; ++i)
        for(j=0; j<c; ++j)
        {
            printf("Enter element a%d%d: ",i+1, j+1);
            scanf("%d", &b[i][j]);
        }
    // Adding Two matrices
    for(i=0;i<r;++i)
        for(j=0;j<c;++j)
        {
            sum[i][j]=a[i][j]+b[i][j];
        }
    // Displaying the result
    printf("\nSum of two matrices: \n");
    for(i=0;i<r;++i)
        for(j=0;j<c;++j)
        {
            printf("%d   ",sum[i][j]);
            if(j==c-1)
            {
                printf("\n\n");
            }
        }
    
    return 0;
}