Pattern 447

Pattern 447 post thumbnail image

C

#include <stdio.h>

int main()
{
  int n = 7; // prefer odd
  int x = 1;
  int i,j;

  for(i = 1; i <= n; i++)
  {
    for(j = 1; j < 2 * x; j++)
    {
      if (i <= n / 2 + 1 && j % 2 == 1)
      {
        printf("%d ", i);
      }
      else if ((i > n / 2 + 1 && j % 2 == 1))
      {
        printf("%d ", n - i + 1);
      }
      else
      {
        printf("* ");
      }
    }
    if (i <= n / 2)
      x++;
    else
      x--;
    printf("\n");
  }
  return 0;
}

C++

#include <iostream.h>

int main()
{
  int n = 7; // prefer odd
  int x = 1;
  

  for(int i = 1; i <= n; i++)
  {
    for(int j = 1; j < 2 * x; j++)
    {
      if (i <= n / 2 + 1 && j % 2 == 1)
      {
        cout<<i<<" ";
      }
      else if ((i > n / 2 + 1 && j % 2 == 1))
      {
        cout<<(n - i + 1)<<" ";
      }
      else
      {
        cout<<"* ";
      }
    }
    if (i <= n / 2)
      x++;
    else
      x--;
    cout<<endl;
  }
  return 0;
}

Java

class PatternProg
{
	public static void main(String args[])
	{
	  int n = 7; // prefer odd
	  int x = 1;


	  for (int i = 1; i <= n; i++)
	  {
		for (int j = 1; j < 2 * x; j++)
		{
		  if (i <= n / 2 + 1 && j % 2 == 1)
		  {
			System.out.print(i+" " );
		  }
		  else if ((i > n / 2 + 1 && j % 2 == 1))
		  {
			System.out.print((n - i + 1)+" ");
		  }
		  else
		  {
			System.out.print("* ");
		  }
		}
		if (i <= n / 2)
		{
		  x++;
		}
		else
		{
		  x--;
		}
		System.out.println();
	  }
	  
	}
}

C#

using System;

class PatternProg
{
  public static void Main()
  {
    int n = 7; // prefer odd
    int x = 1;


    for (int i = 1; i <= n; i++)
    {
      for (int j = 1; j < 2 * x; j++)
      {
        if (i <= n / 2 + 1 && j % 2 == 1)
        {
          Console.Write(i + " ");
        }
        else if ((i > n / 2 + 1 && j % 2 == 1))
        {
          Console.Write((n - i + 1) + " ");
        }
        else
        {
          Console.Write("* ");
        }
      }
      if (i <= n / 2)
      {
        x++;
      }
      else
      {
        x--;
      }
      Console.WriteLine();
    }


    Console.ReadKey(true);
  }
}

Python

n = 7  # prefer odd
d = 1

for x in range(1, n + 1):
    for y in range(1, 2 * d):
        if x <= n // 2 + 1 and y % 2 == 1:
            print(str(x) + " ", end="")
        elif x > n // 2 + 1 and y % 2 == 1:
            print(str(n - x + 1) + " ", end="")
        else:
            print("* ", end="")
    if x <= n // 2:
       d += 1
    else:
       d -= 1
    print()
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