What is Floyd’s triangle? Write a C# program to print a Floyd’s triangle.

Ashutosh Kumar Verma

Floyd’s triangle:

 A Floyd’s triangle is a right angular array of natural numbers starts with 1. It start from top left corner with 1 and print in increment order. Follow is a C# program to print a Floyd’s triangle.

Program:

using System;				

public class Program

{

 public static void Main()

 {

  int n=1;

  for(int i=1;i<=5;i++)

  {

   for(int j=1;j<=i;j++)

   {

    Console.Write(n+' ');

    n++;

   }

   Console.WriteLine(' ');

  }

 }

}

Output:

1  

2 3  

4 5 6  

7 8 9 10  

11 12 13 14 15

Taking input from user for number of row in triangle.

Program:

using System;

public class Program

{

 public static void Main()

 {

  int n,num=1;

  Console.WriteLine('Enter the number of row in Floyd's triangle');

  n=int.Parse(Console.ReadLine());

  for(int i=1;i<=n;i++)

  {

   for(int j=1;j<=i;j++)

   {

    Console.Write(num+' ');

    num++;

   }

   Console.WriteLine(' ');

  }

 }

}

Output:

Enter the number of row in Floyd's triangle

5

1  

2 3  

4 5 6  

7 8 9 10  

11 12 13 14 15