pepcoding_pattern1

Main.cpp

#include <iostream>

using namespace std;

int main()
{
    int n;
    cin>>n;
    
if(n<=0 || n>26)
    {
        cout<<"Enter a Valid number";
        return 0;
    }

    for(int i =1;i<=n;i++)
    {
        for(int j=1;j<=i;j++)
        {
            if(i%2 == 0) cout<<(char)(j+64)<<" ";
            else cout<<j<<" ";
        }
        cout<<endl;
    }

    return 0;
}

Main.java

import java.util.*;
public class Main {
    public static void main(String args[]) {
      Scanner scn = new Scanner(System.in);
      int n = scn.nextInt();
      
      if(n<=0 || n>26)
      {
          System.out.println("Enter a Valid number");
          return;
      }
 
      for(int i=1;i<=n;i++)
      {
          for(int j =1;j<=i;j++)
          {
              if(i%2 == 0) System.out.print((char)(j+64) + " ");
              else System.out.print(j + " ");
          }
          System.out.println();
      }
    }
}