Program in C to print numeric triangle

Write a C program to print the following number rectangle:

1333

2222

3331

Solution:

/*c program for print number rectangle pyramid*/

#include<stdio.h>

int main()

{

            int num,n,r,c,k;

            printf("Enter no. of rows: ");

            scanf("%d", &num);

            n=num;

            for(r=1; r<=num; r++,n--)

            {

                        for(c=1; c<=r; c++)

                                    printf("%d",r);

                        for(k=1; k<=n; k++)

                                    printf("%d",n);

                        printf("\n");

            }

            return 0;

}