Butterfly Pattern in C Programming of Numbers using for loop

Butterfly pattern in c programming of numbers using for loop. In this article, you will learn how to print the butterfly pattern in c programming of the numbers using for loop statement.

Example

You should have knowledge of the following topics in c programming to understand this program:

• C main() function
• C printf() function
• C for loop statement
• C putchar() function

In this program, we used normal functions and statements to print the butterfly pattern in C language.

Source Code

// Butterfly Pattern in C Programming of Numbers using for loop
#include <stdio.h>

int main() {
    int r, h, d, s;
    // r - denotes for pattern row
    // h - denotes for pattern height
    // d - denotes for digits
    // s - denotes for space

	printf("-----Enter the height of the pattern-----\n");
	scanf("%d", &h);
	printf("\n-----This the butterfly pattern-----\n\n\n");

	for(r = 1; r <= h - 1; r++) {
		printf("\t");
		for(d = 1; d <= r; d++)
			printf("%d ", d);
		for(s = 1; s <= 2 * (h - r); s++)
			printf("  ");
		putchar('\b');
		for(d = r; d >= 1; d--)
			printf(" %d", d);
		putchar('\n');
	}

	for(r = h; r >= 1; r--) {
		printf("\t");
		for(d = 1; d <= r; d++)
			printf("%d ", d);
		for(s = 1; s <= 2 * (h - r); s++)
			printf("  ");
		putchar('\b');
		for(d = r; d >= 1; d--)
			printf(" %d", d);
		putchar('\n');
	}
    return 0;
}

Run Program

Output

Explanation

In this program, we have taken input 6 size of the pattern then made the calculation using the for loop statement and putchar() function.