How to print Hour Glass Pattern in C - Step by Step Examples

How to print Hour Glass Pattern in C ?

Answer

To print an Hourglass Pattern in C, we use nested loops. The outer loop controls the rows and the inner loops control the spaces and stars (*) to form the pattern.

✐ Examples

1 Hourglass Pattern

In this example,

We use two nested for loops, where the outer loop runs from n to 1 and the inner loops control the spaces and stars in each row.
Within the inner loops, we calculate the number of spaces and stars based on the current row number to form the hourglass pattern.

C Program

#include <stdio.h>

void printHourglass(int n) {
    for (int i = n; i >= 1; i--) {
        for (int j = 0; j < n - i; j++)
            printf(" ");
        for (int j = 0; j < 2 * i - 1; j++)
            printf("*");
        printf("\n");
    }
    for (int i = 2; i <= n; i++) {
        for (int j = 0; j < n - i; j++)
            printf(" ");
        for (int j = 0; j < 2 * i - 1; j++)
            printf("*");
        printf("\n");
    }
}

int main() {
    int n = 5;
    printHourglass(n);
    return 0;
}

Output

*********
 *******
  *****
   ***
    *
   ***
  *****
 *******
*********

Summary

In this tutorial, we learned How to print Hour Glass Pattern in C language with well detailed examples.

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