Pattern 55

#include <stdio.h>

int main()
{
  int n = 4;
  int x = 1;
  int i,j;

  for(i = 1; i <= n; i++)
  {
    for (j = 1; j <= i; j++)
    {
      printf("%3d ", x * x);
      x++;
    }
    printf("\n");
  }
  return 0;
}

#include <iostream.h>

int main()
{
  int n = 4;
  int x = 1;
  

  for(int i = 1; i <= n; i++)
  {
    for(int j = 1; j <= i; j++)
    {
      cout<<(x * x)<<" ";
      x++;
    }
    cout<<endl;
  }
  return 0;
}

  class PatternProg
  {
	public static void main(String args[])
	{
	  int n = 4;
	  int x = 1;


	  for (int i = 1; i <= n; i++)
	  {
		for (int j = 1; j <= i; j++)
		{
		  System.out.printf("%3d ",x * x);
		  x++;
		}
		System.out.println();
	  }
	  
	}
}

using System;

class PatternProg
{
  public static void Main()
  {
    int n = 4;
    int x = 1;


    for (int i = 1; i <= n; i++)
    {
      for (int j = 1; j <= i; j++)
      {
        Console.Write("{0,3:D} ", x * x);
        x++;
      }
      Console.WriteLine();
    }

    Console.ReadKey(true);
  }
}

n = 4
d = 1

for x in range(1, n + 1):
 for y in range(1, x + 1):
   print("{:3d} ".format(d * d), end="")
   d += 1
 print()