Pattern 310

#include <stdio.h>
int main()
{
  int n=5; //size
  int i,j,s;

  for(i=1; i<=n; i++)
  {
    for(s=n-1; s>=i; s--)
    {
      printf(" ");
    }
    for(j=1; j<=i; j++)
    {
      if(i%2==0)
        printf("%c ",j+64); // whitespace after %c
      else
        printf("%d ",j); // whitespace after %d
    }
    printf("\n");
  }
}

#include <iostream.h>
int main()
{
 int n=5; //size
 int i,j,s;
 
 for(i=1;i<=n;i++) 
 {
   for(s=n-1;s>=i;s--)
   {
      cout<<" ";
   }
   for(j=1;j<=i;j++) 
   {
   if(i%2==0)
   cout<<(char)(j+64)<<" "; // to get character 
   else
   cout<<j<<" ";
   }
  cout<<endl;  
 }
 return 0;  
}

class PatternProg
{
   public static void main (String args[])
   {
    int n = 5; //size
    int i;
    int j;
    int s;

    for (i = 1;i <= n;i++)
    {
      for (s = n - 1;s >= i;s--)
      {
         System.out.print(" ");
      }
      for (j = 1;j <= i;j++)
      {
      if (i % 2 == 0)
      {
      System.out.print((char)(j + 64)+" ");
      }
      else
      {
      System.out.print(j+" ");
      }
      }
     System.out.println();
    }
    
   }
}

using System;

class PatternProg
{
  public static void Main()
  {
    int n = 5; //size
    int i;
    int j;
    int s;

    for (i = 1; i <= n; i++)
    {
      for (s = n - 1; s >= i; s--)
      {
        Console.Write(" ");
      }
      for (j = 1; j <= i; j++)
      {
        if (i % 2 == 0)
        {
          Console.Write((char)(j + 64) + " ");
        }
        else
        {
          Console.Write(j + " ");
        }
      }
      Console.WriteLine();
    }
    Console.ReadKey(true);
  }
}

n = 5  # size
for x in range(1, n + 1):
    for s in range(n - 1, x - 1, -1):
        print(" ", end="")
    for y in range(1, x + 1):
        if (x % 2 == 0):
            print(chr(y + 64) + " ", end="")  # for char
        else:
            print(str(y) + " ", end="")
    print()