C : Program for printing asterisk in right angle triangle shape

Program :

//c program for printing asterisk in right angle triangle shape

#include<stdio.h>

int main()
{
    int rows;

    printf("Enter the number of rows :");
    scanf("%d", &rows);

    for(int i=1; i<=rows; i++)
    {
        for(int j=1; j<=rows; j++)
        {
            if(j==1 || i==j || i==rows)
            {
                printf("* ");
            }
            else
            {
                printf("  ");
            }
        }
        printf("\n");
    }

    return 0;
}

Output :