pyramid of *

C++ Program To display the pyramid of * and digits

C++ program to print pyramid using *.

        
        *
      * * *
    * * * * *
  * * * * * * *
* * * * * * * * *

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

C++ program to print the pyramid of digits in pattern as below.

        1
      2 3 2
    3 4 5 4 3
  4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5

#include <iostream>
using namespace std;
int main()
{
   int i,space,rows,k=0,count=0,count1=0;
   cout<<"Enter the number of rows: ";
   cin>>rows;
   for(i=1;i<=rows;++i)
   {
      for(space=1;space<=rows-i;++space)
      {
         cout<<"  ";
         ++count;
      }
      while(k!=2*i-1)
      {
            if (count<=rows-1)
            {
              cout<<i+k<<" ";
              ++count;
            }
            else
            {
               ++count1;
               cout<<i+k-2*count1<<" ";
            }
           ++k;
        }
      count1=count=k=0;
      cout<<"\n";
    }
    return 0;
}