C++ Program to Print W Star Pattern

Write a C++ program to print W star pattern using for loop. In this C++ example, printingSpaces iterate from 0 to rows and prints the empty spaces and printingStars will print the stars. 

#include<iostream>
using namespace std;

void printingStars(int rows)
{
	for (int i = 0; i < rows; ++i)
	{
		cout << "*";
	}
}
void printingSpaces(int rows)
{
	for (int i = 0; i < rows; ++i)
	{
		cout << " ";
	}
}

int main()
{
	int rows;

	cout << "Enter W Shape Star Pattern Rows = ";
	cin >> rows;

	cout << "Printing W Shape Pattern\n";
	for (int i = 0; i < rows; i++)
	{
		printingStars(i + 1);
		printingSpaces(rows - i - 1);
		printingStars(rows - i + 1);
		printingSpaces(2 * i);
		printingStars(rows - i);
		printingSpaces(rows - i - 1);
		printingStars(i + 1);
		cout << "\n";
	}
}

This C++ program prints the alphabetical W pattern of stars using a while loop.

#include<iostream>
using namespace std;

void printingStars(int rows)
{
	int i = 0;
	while (i < rows)
	{
		cout << "*";
		++i;
	}
}
void printingSpaces(int rows)
{
	int i = 0;
	while (i < rows)
	{
		cout << " ";
		++i;
	}
}

int main()
{
	int rows;

	cout << "Enter W Shape Star Pattern Rows = ";
	cin >> rows;

	cout << "Printing W Shape Pattern\n";
	int i = 0;
	while (i < rows)
	{
		printingStars(i + 1);
		printingSpaces(rows - i - 1);
		printingStars(rows - i + 1);
		printingSpaces(2 * i);
		printingStars(rows - i);
		printingSpaces(rows - i - 1);
		printingStars(i + 1);
		cout << "\n";
		i++;
	}
}

Enter W Shape Star Pattern Rows = 13
Printing W Shape Pattern
*            ***************************            *
**           *************  ************           **
***          ************    ***********          ***
****         ***********      **********         ****
*****        **********        *********        *****
******       *********          ********       ******
*******      ********            *******      *******
********     *******              ******     ********
*********    ******                *****    *********
**********   *****                  ****   **********
***********  ****                    ***  ***********
************ ***                      ** ************
***************                        **************

In this C++ example, the printingStars function allows entering any character and prints the W pattern of a given character.

#include<iostream>
using namespace std;

void printingStars(int rows, char ch)
{
	for (int i = 0; i < rows; ++i)
	{
		cout <<  ch;
	}
}

void printingSpaces(int rows)
{
	for (int i = 0; i < rows; ++i)
	{
		cout << " ";
	}
}

int main()
{
	int rows;
	char ch;

	cout << "Enter Character for W Pattern = ";
	cin >> ch;

	cout << "Enter W Shape Star Pattern Rows = ";
	cin >> rows;

	cout << "Printing W Shape Pattern\n";
	for (int i = 0; i < rows; i++)
	{
		printingStars(i + 1, ch);
		printingSpaces(rows - i - 1);
		printingStars(rows - i + 1, ch);
		printingSpaces(2 * i);
		printingStars(rows - i, ch);
		printingSpaces(rows - i - 1);
		printingStars(i + 1, ch);
		cout << "\n";
	}
}

Enter Character for W Pattern = $
Enter W Shape Star Pattern Rows = 16
Printing W Shape Pattern
$               $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$               $
$$              $$$$$$$$$$$$$$$$  $$$$$$$$$$$$$$$              $$
$$$             $$$$$$$$$$$$$$$    $$$$$$$$$$$$$$             $$$
$$$$            $$$$$$$$$$$$$$      $$$$$$$$$$$$$            $$$$
$$$$$           $$$$$$$$$$$$$        $$$$$$$$$$$$           $$$$$
$$$$$$          $$$$$$$$$$$$          $$$$$$$$$$$          $$$$$$
$$$$$$$         $$$$$$$$$$$            $$$$$$$$$$         $$$$$$$
$$$$$$$$        $$$$$$$$$$              $$$$$$$$$        $$$$$$$$
$$$$$$$$$       $$$$$$$$$                $$$$$$$$       $$$$$$$$$
$$$$$$$$$$      $$$$$$$$                  $$$$$$$      $$$$$$$$$$
$$$$$$$$$$$     $$$$$$$                    $$$$$$     $$$$$$$$$$$
$$$$$$$$$$$$    $$$$$$                      $$$$$    $$$$$$$$$$$$
$$$$$$$$$$$$$   $$$$$                        $$$$   $$$$$$$$$$$$$
$$$$$$$$$$$$$$  $$$$                          $$$  $$$$$$$$$$$$$$
$$$$$$$$$$$$$$$ $$$                            $$ $$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$                              $$$$$$$$$$$$$$$$$