41_hollow-pyramid.c

#include <stdio.h>
 

int main()
{

    int i, space, n = 5, j = 0;
 

    // first for loop is used to

    // iterate number of rows

    for (i = 0; i < n - 1; i++) {
 

        // second for loop is used to print spaces

        for (space = 1; space < n - i; space++) {

            printf(" ");

        }

        // third for loop is used

        // to print the required

        // pattern

        for (j = 0; j <= 2 * i; j++) {

            if (j == 0 || j == 2 * i)

                printf("*");

            else

                printf(" ");

        }

        // print the new line after every row

        printf("\n");

    }

    // used to print last row

    for (i = 0; i < 2 * n - 1; i++) {

        printf("*");

    }

    return 0;
}