Palindromic right-angled triangle pattern

// Output Format

// For the given integer N, print the palindromic right-angled triangle pattern.

// Sample Input 0

// 5
// Sample Output 0

// A 
// A B A 
// A B C B A 
// A B C D C B A 
// A B C D E D C B A

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
       int n;
    cin>>n;
     
    for(int i=0;i<n;i++)
    {
      
        char ch='A';
        int breakpoint=(2*i+1)/2;
        for(int j=1;j<=2*i+1;j++)
        {
            cout<<ch<<" ";
           if(j<=breakpoint)
           {
               ch++;
           }
            else
            {
                ch--;
            }
            
        }
        cout<<endl;
    }
    return 0;
}