Write a C++ program to print pyramid alphabets pattern using for loop.
#include<iostream>
using namespace std;
int main()
{
int rows;
cout << "Enter Pyramid of Alphabets Rows = ";
cin >> rows;
cout << "Printing Pyramid Alphabets Pattern\n";
int alphabet = 64;
for (int i = 1; i <= rows; i++)
{
for (int j = 1; j <= rows - i; j++)
{
cout << " ";
}
for (int k = i; k > 0; k--)
{
cout << char(alphabet + k);
}
for (int l = 2; l <= i; l++)
{
cout << char(alphabet + l);
}
cout << "\n";
}
}

This example program prints the pyramid pattern of alphabets using a while loop.
#include<iostream>
using namespace std;
int main()
{
int rows, i, j, k, l, alphabet;
cout << "Enter Pyramid of Alphabets Rows = ";
cin >> rows;
cout << "Printing Pyramid Alphabets Pattern\n";
alphabet = 64;
i = 1;
while (i <= rows)
{
j = 1;
while (j <= rows - i)
{
cout << " ";
j++;
}
k = i;
while (k > 0)
{
cout << char(alphabet + k);
k--;
}
l = 2;
while (l <= i)
{
cout << char(alphabet + l);
l++;
}
cout << "\n";
i++;
}
}
Enter Pyramid of Alphabets Rows = 15
Printing Pyramid Alphabets Pattern
A
BAB
CBABC
DCBABCD
EDCBABCDE
FEDCBABCDEF
GFEDCBABCDEFG
HGFEDCBABCDEFGH
IHGFEDCBABCDEFGHI
JIHGFEDCBABCDEFGHIJ
KJIHGFEDCBABCDEFGHIJK
LKJIHGFEDCBABCDEFGHIJKL
MLKJIHGFEDCBABCDEFGHIJKLM
NMLKJIHGFEDCBABCDEFGHIJKLMN
ONMLKJIHGFEDCBABCDEFGHIJKLMNO