Program in C to print the Hollow Number Diamond Pattern

 

Program in C to print the Hollow Number Diamond Pattern

Sample Input:

4

Sample Output:

      *

    *  *

  *     *

 *       *

*         *

 *       *

  *     *

   *  *

     *

Program implementation C Language :

#include<stdio.h>

int main() {

  printf("Enter the number of rows to show the star pattern:  ");

  int n, x, y, s = 1, k;

  scanf("%d", & n);

  for (x = 0; x <= n; x++) {

    for (y = n; y > x; y--) {

      printf(" ");

    }

    printf("*");

    if (x > 0) {

      for (k = 1; k <= s; k++) {

        printf(" ");

      }

      s += 2;

      printf("*");

    }

    printf("\n");

  }

  s -= 4;

  for (x = 0; x <= n - 1; x++) {

    for (y = 0; y <= x; y++) {

      printf(" ");

    }

    printf("*");

    for (k = 1; k <= s; k++) {

      printf(" ");

    }

    s -= 2;

    if (x != n - 1) {

      printf("*");

    }

    //ending line after each row

    printf("\n");

  }

  return 0;

}