Here in the following I've shared the Code for printing alphabet pyramid.

#include <iostream>
using namespace std;
int main() {
int i,j,n,ch=64;
cout<<"Enter Value For Patten : ";
cin>>n;
for(i=1;i<=n;i++)
{
ch=64;
for(j=1;j<=i;j++)
{
ch+=1;
cout<<(char)ch;
}
cout<<"\n";
}
return 0;
}

Output:

Enter Value For Patten : 6
A
AB
ABC
ABCD
ABCDE
ABCDEF