C program to print heart star pattern 
  ***    ***
 *****  *****
**************
*************
 ***********
  *********
   *******
    *****
     ***
      *

C Programming Language / Loop control in C Language

1260

Program:

/**
 * C program to print heart star pattern 
* atnyla.com
 */

#include "stdio.h"

int main()
{
    int i, j, n;7

    printf("Enter value of n : ");
    scanf("%d", &n);

    for(i=n/2; i <= n; i+=2)
    {
        for(j=1; j < n-i; j+=2)
        {
            printf(" ");
        }

        for(j=1; j <= i; j++)
        {
            printf("*");
        }

        for(j=1; j <= n-i; j++)
        {
            printf(" ");
        }

        for(j=1; j <= i; j++)
        {
            printf("*");
        }

        printf("\n");
    }

    for(i=n; i >= 1; i--)
    {
        for(j=i; j <  n; j++)
        {
            printf(" ");
        }

        for(j=1; j <= (i*2)-1; j++)
        {
            printf("*");
        }

        printf("\n");
    }

    return 0;
}

Output:

Enter value of n : 7
  ***    ***
 *****  *****
**************
*************
 ***********
  *********
   *******
    *****
     ***
      *
Press any key to continue . . .

Explanation:

Required knowledge

Basic C programming, For loop, Nested loop

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