C Program to Print Diamond Star Pattern

Program to print diamond star patterns in c; Through this tutorial, we will learn how to print diamond star patterns using for loop, while loop, and do-while loop in c programs.

Programs to Print Diamond Star Pattern in C

Let’s use the following program to print diamond pattern in c using for loop and while loop:

• C Program to Print Diamond Star Pattern using For Loop
• C Program to Print Diamond Star Pattern using While Loop

C Program to Print Diamond Star Pattern using For Loop

#include<stdio.h>
int main()
{
 	int i, j, rows;
 	printf("Enter Diamond Rows =  ");
 	scanf("%d", &rows);

    printf("Diamond Star Pattern\n");
	for(i = 1; i <= rows; i++)
	{
		for(j = 1; j <= rows - i; j++)
		{
			printf(" ");
		}
        for(j = 1; j <= i * 2 - 1; j++)
        {
            printf("*");
        }
		printf("\n");
	}

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

 	return 0;
}

The output of the above c program; is as follows:

Enter Diamond Rows =  5
Diamond Star Pattern
    *
   ***
  *****
 *******
*********
 *******
  *****
   ***
    *

C Program to Print Diamond Star Pattern using While Loop

#include<stdio.h>
int main()
{
 	int i, j, rows;
 	printf("Enter Diamond Rows =  ");
 	scanf("%d", &rows);

    printf("Diamond Star Pattern\n");
	i = 1;
	while(i <= rows)
	{
		j = 1;
		while(j <= rows - i)
		{
			printf(" ");
			j++;
		}
		j = 1;
        while(j <= i * 2 - 1)
        {
            printf("*");
			j++;
        }
		printf("\n");
		i++;
	}
	i = rows - 1;
    while(i > 0)
	{
		j = 1;
		while(j <= rows - i)
		{
			printf(" ");
			j++;
		}
		j = 1;
        while(j <= i * 2 - 1)
        {
            printf("*");
			j++;
        }
		printf("\n");
		i--;
	}

 	return 0;
}

The output of the above c program; is as follows:

Enter Diamond Rows =  5
Diamond Star Pattern
    *
   ***
  *****
 *******
*********
 *******
  *****
   ***
    *

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