🔷 C Pattern Program: Hourglass Star Shape

#include <stdio.h>

int main()
{
    int num;
    printf("Enter the number: ");
    scanf("%d", &num);

    // Upper half
    for (int i = 0; i < num; i++)
    {
        for (int j = 0; j < (num - i - 1); j++)
        {
            printf(" ");
        }
        printf("*\n");
    }

    // Lower half
    for (int i = 1; i < num; i++)
    {
        for (int j = 0; j < i; j++)
        {
            printf(" ");
        }
        printf("*\n");
    }

    return 0;
}
  

📘 Explanation:

This C program prints a vertical hourglass-like star pattern using spaces and a single * per row.

🔹 The first loop prints the upper half: decreasing spaces followed by a star.
🔹 The second loop prints the lower half: increasing spaces followed by a star.
🔹 Together, it creates a symmetrical hourglass shape centered around the vertical axis.

🔍 Sample Output:

Enter the number: 5
    *
   *
  *
 *
*
 *
  *
   *
    *
    

🏷️ Keywords:

C pattern printing, star pattern, diamond pattern, vertical hourglass, single star pattern, C loop pattern examples