C++ programming using “*” for Christmas Tree Pattern

Program code:

#include<iostream>
using namespace std;

int main()
{
	int width, height, i, j, k, n = 1;

	cout << "Enter Christmas Tree Width & Height : ";
	cin >> width >> height;

	int space = width * height;

	cout << "Christmas Tree \n";

	for (int x = 1; x <= height; x++)
	{
		for (i = n; i <= width; i++)
		{
			for (j = space; j >= i; j--)
			{
				cout <<" ";
			}
			for (k = 1; k <= i; k++)
			{
				cout <<"* ";
			}
			cout <<"\n";
		}
		n = n + 2;
		width = width + 2;
	}
	for (i = 1; i <= height - 1; i++)
	{
		for (j = space - 3; j >= 0; j--)
		{
			cout << " ";
		}
		for (k = 1; k <= height - 1; k++)
		{
			cout << "* ";
		}
		cout << "\n";
	}
}

Output:

Enter Christmas Tree Width & Height : 4 5
Christmas Tree 
                    * 
                   * * 
                  * * * 
                 * * * * 
                  * * * 
                 * * * * 
                * * * * * 
               * * * * * * 
                * * * * * 
               * * * * * * 
              * * * * * * * 
             * * * * * * * * 
              * * * * * * * 
             * * * * * * * * 
            * * * * * * * * * 
           * * * * * * * * * * 
            * * * * * * * * * 
           * * * * * * * * * * 
          * * * * * * * * * * * 
         * * * * * * * * * * * * 
                  * * * * 
                  * * * * 
                  * * * * 
                  * * * * 

Note: also read about Pattern Program Using Star

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Rabecca Fatima

Staying up to the mark is what defines me. Hi all! I’m Rabecca Fatima a keen learner, great enthusiast, ready to take new challenges as stepping stones towards flying colors.