AlphaPattern.cpp

// Print the following pattern for the given N number of rows.
// Pattern for N = 3
//  A
//  BB
//  CCC

#include<iostream>
using namespace std;


int main(){
    int n;
    cin >> n;
    int i=1;
    while (i <= n){
        int j=1;
        while (j <= i){
            char ch = 'A' + i-1;
            cout<<ch;
            j++;
        }
    cout<<endl;
    i++;
    }
}