CPP Program to print triangle pattern

C-Plus-Plus-Programs

In this post, we will learn CPP Program to CPP Program to print triangle pattern

1. Program to draw triangle Pyramid of start(*)


In this program, we are drawing a half Pyramid in the CPP program.

Program Example

#include <iostream>
using namespace std;

int main()
{
    int rows;

    cout << "Enter number of rows for triangle pyramid: ";
    cin >> rows;

    for(int x = 1; x <= rows; ++x)
    {
        for(int y = 1; y <= x; ++y)
        {
            cout << "* ";
        }
        cout << "\n";
    }
    return 0;
}

Output

Enter number of rows for triangle pyramid: 5

* 

* * 

* * * 

* * * * 

* * * * * 




2. Program to Draw a triangle pattern of Number

In this program, we are drawing a half Pyramid of numbers in the CPP program.

Program Example

#include <iostream>
using namespace std;

int main()
{
    int rows;

    cout << "Enter number of rows for triangle pyramid: ";
    cin >> rows;

    for(int x = 1; x <= rows; ++x)
    {
        for(int y = 1; y <= x; ++y)
        {
            cout <<y <<" ";
        }
        cout << "\n";
    }
    return 0;
}

Output

Enter number of rows for triangle pyramid: 5

1 

1 2 

1 2 3 

1 2 3 4 

1 2 3 4 5 




3. Program to Draw inverted triangle pattern


In this program, we are drawing an inverse half Pyramid in the CPP program.

Program Example

#include <iostream>
using namespace std;

int main()
{
    int rows;

    cout << "Enter number of rows for triangle pyramid: ";
    cin >> rows;

    for(int x = rows; x >= 1; --x)
    {
        for(int y = 1; y <= x; ++y)
        {
            cout <<"* ";
        }
        cout << "\n";
    }
    return 0;
}

Output

Enter number of rows for triangle pyramid: 5

* * * * * 

* * * * 

* * * 

* * 

* 




4. Program to Draw inverted triangle pattern of number


In this program, we are drawing an inverse half Pyramid of numbers in the CPP program.

Program Example

#include <iostream>
using namespace std;

int main()
{
    int rows;

    cout << "Enter number of rows for triangle pyramid: ";
    cin >> rows;

    for(int x = rows; x >= 1; --x)
    {
        for(int y = 1; y <= x; ++y)
        {
            cout <<y<<" ";
        }
        cout << "\n";
    }
    return 0;
}

Output

Enter number of rows for triangle pyramid: 5

1 2 3 4 5 

1 2 3 4 

1 2 3 

1 2 

1