C++ Program to Create Pyramid Pattern

Program 1

//Program to print star Pyramid
// *
// **
// ***
#include<iostream>
using namespace std;
int main()
{
    int i,j,n;
    system("cls");
    cout<<"Enter the limit";
    cin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
        {
            cout<<"*";
        }
        cout<<"\n";
    }
    return 0;
}

Program 2

//Program to print star Pyramid
// 1
// 22
// 333
//4444
#include<iostream>
using namespace std;
int main()
{
    int i,j,n;
    system("cls");
    cout<<"Enter the limit";
    cin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
        {
            cout<<i;
        }
        cout<<"\n";
    }
    return 0;
}

Program 3

//Program to print star Pyramid
// 1
// 12
// 123
//1234
#include<iostream>
using namespace std;
int main()
{
    int i,j,n;
    system("cls");
    cout<<"Enter the limit";
    cin>>n;
    for(i=1;i<=n;i++)
    {
        for(j=1;j<=i;j++)
        {
            cout<<j;
        }
        cout<<"\n";
    }
    return 0;
}

Program 4

//Program to print star Pyramid
// A
// AB
// ABC
//ABCD
#include<iostream>
using namespace std;
int main()
{
    int i,j,n;
    char ch;
    system("cls");
    xyz:cout<<"\nEnter the limit";
    cin>>n;
    if(n>26)
    {
        cout<<"\nPls Enter till 26";
        goto xyz;

    }
    else
    {
      for(i=1;i<=n;i++)
     {
          ch='A';
        for(j=1;j<=i;j++)
        {
            cout<<ch;
            ch++;
        }
        cout<<"\n";
     }
   
   } 
    return 0;
}