C Program to Print Right Arrow Star Pattern

Write a C Program to Print the Right Arrow Star Pattern using for loop. In this C example, we used nested for loop and the If else statement to print the stars in the right arrow pattern.

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

    printf("Right Arrow Star Pattern\n");
	for(i = 1; i <= rows; i++)
	{
        for(j = 1; j <= rows; j++)
        {
            if(j < i)
            {
                printf(" ");
            }
            else
            {
                printf("*");
            }
        }
		printf("\n");
	}

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

In this c example, we altered the for loop a bit to property print the right arrow.

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

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

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

Enter Right Arrow Star Pattern Rows =  6
Right Arrow Star Pattern
******
  *****
    ****
      ***
        **
          *
        **
      ***
    ****
  *****
******

In this C Program, we replaced the for loop with a while loop to Print Right Arrow Star Pattern. It also allows entering the symbol to print in the right arrow shape.

#include<stdio.h>
int main()
{
 	int i, j, rows;
    char ch;
    
    printf("Symbol to Print Right Arrow =  ");
    scanf("%c", & ch);
    
 	printf("Enter Right Arrow Star Pattern Rows =  ");
 	scanf("%d", &rows);

    printf("Right Arrow Star Pattern\n");
    i = 1;
	while(i < rows)
	{
        j = 1;
        while(j <= (2 * i - 2))
        {
            printf(" ");
            j++;
        }
        j = i;
        while(j <= rows)
        {
            printf("%c", ch);
            j++;
        }
		printf("\n");
        i++;
	}
    i = 1;
    while(i <= rows)
	{
        j = 1;
		while(j <= (2 * rows - 2 * i))
		{
            printf(" ");
            j++;
        }
        j = 1;
        while(j <= i)
        {
            printf("%c", ch);
            j++;
		}
		printf("\n");
        i++;
	}
 	return 0;
}

Symbol to Print Right Arrow =  #
Enter Right Arrow Star Pattern Rows =  6
Right Arrow Star Pattern
######
  #####
    ####
      ###
        ##
          #
        ##
      ###
    ####
  #####
######