c++ program to print pyramid of numbers - Wikitechy

Print pyramid triangle in C++

Editor — Tue, 13 Jul 2021 00:20:02 +0000

Print pyramid triangle in C++

To print pyramid triangle in C++, we have use two for loop, the outer for loop and the inner for loop.
The outer for loop is responsible for rows and the inner for loop is responsible for column.
C++ programs to print different types of patterns using stars(*), numbers, and characters or alphabets.
This C++ program prints the full pyramid using stars(*).

Sample Code in C++

#include 
using namespace std;
   int main()
{
    int j, rows;
       cout <<"Enter number of rows: ";
    cin >> rows;
       for(int i = 1, k = 0; i <= rows; ++i, k = 0)
    {
        for(j = 1; j <= rows-i; ++j)
        {
            cout <<"  ";
        }
        while(k != 2*i-1)
        {
            cout << "* ";
            ++k;
        }
        cout << endl;
    }    
    return 0;
}

Output

Enter number of rows : 7   
            * 
          * * * 
        * * * * * 
      * * * * * * * 
    * * * * * * * * * 
  * * * * * * * * * * * 
* * * * * * * * * * * * *