Pattern 246

#include <stdio.h>

int main()
{
  int n = 5;
  int i,j;

  int x = 1, y = 1;

  for(i = 1; i <= n; i++)
  {
    for(j = 1; j <= i; j++)
    {
      if (i % 2 == 1)
      {
        printf("%d ", x++);
      }
      else
      {
        printf("%c ", y + 64);
        y++;
      }
    }
    printf("\n");
  }
  return 0;
}

#include <iostream.h>

int main()
{
  int n = 5;
  

  int x = 1, y = 1;

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

class PatternProg
{
	public static void main(String args[])
	{
	  int n = 5;


	  int x = 1;
	  int y = 1;

	  for (int i = 1; i <= n; i++)
	  {
		for (int j = 1; j <= i; j++)
		{
		  if (i % 2 == 1)
		  {
			System.out.print(" "+x++);
		  }
		  else
		  {
			System.out.print(" "+(char)(y + 64));
			y++;
		  }
		}
		System.out.println();
	  }
	  
	}
}

using System;

class PatternProg
{
  public static void Main()
  {
    int n = 5;


    int x = 1;
    int y = 1;

    for (int i = 1; i <= n; i++)
    {
      for (int j = 1; j <= i; j++)
      {
        if (i % 2 == 1)
        {
          Console.Write(" " + x++);
        }
        else
        {
          Console.Write(" " + (char)(y + 64));
          y++;
        }
      }
      Console.WriteLine();
    }

    Console.ReadKey(true);
  }
}

n = 5
d = 1
e = 1

for x in range(1, n + 1):
  for y in range(1, x + 1):
    if x % 2 == 1:
       print(str(d) + " ", end="")
       d += 1
    else:
       print(chr(e + 64) + " ", end="")
       e += 1
  print()