C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
public class Program
{
	public static void Main()
	{
		Console.WriteLine("Hello World");
		int[] array = {4,5,9,7,8};
		bool test = CanArrange(array);
		Console.WriteLine(test);		
	}
	
	public static bool CanArrange(int[] array)
	{
		Array.Sort(array);
		
		for(int i=0;i<array.Length-1;i++)
		{
			if(array[i+1]-array[i]!=1)
				return false;				
		}
		return true;
	}
}

 
using System;
                    
public class Program
{
    public static void Main()
    {
        Console.WriteLine("Hello World");
        int[] array = {4,5,9,7,8};
        bool test = CanArrange(array);
        Console.WriteLine(test);        
    }
    
    public static bool CanArrange(int[] array)
    {
        Array.Sort(array);
        
        for(int i=0;i<array.Length-1;i++)
        {
            if(array[i+1]-array[i]!=1)
                return false;               
        }
        return true;
    }
}

3 , 4
3 , 4
Numbers: 3
Numbers: 4

Grouping

Grouping By Gender:

Male
Name: Tom - Gender: Male - Age 20
Name: Dick - Gender: Male - Age 20
Name: Harry - Gender: Male - Age 19
Female
Name: Jane - Gender: Female - Age 21
Name: Wendy - Gender: Female - Age 20
Name: Susan - Gender: Female - Age 23

Grouping By Age , over 21:

23
Name: Susan - Gender: Female - Age 23

Grouping By First Letter of Name:

D
Name: Dick - Gender: Male - Age 20
H
Name: Harry - Gender: Male - Age 19
J
Name: Jane - Gender: Female - Age 21
S
Name: Susan - Gender: Female - Age 23
T
Name: Tom - Gender: Male - Age 20
W
Name: Wendy - Gender: Female - Age 20

LINQ METHOD SYNTAX:

D
Name: Dick - Gender: Male - Age 20
H
Name: Harry - Gender: Male - Age 19
J
Name: Jane - Gender: Female - Age 21
S
Name: Susan - Gender: Female - Age 23
T
Name: Tom - Gender: Male - Age 20
W
Name: Wendy - Gender: Female - Age 20

LINQ METHOD SYNTAX, Grouping By Multiple Keys (Gender, Age):

{ Gender = Male, Age = 19 }
Name: Harry
{ Gender = Female, Age = 21 }
Name: Jane
{ Gender = Female, Age = 20 }
Name: Wendy
{ Gender = Female, Age = 23 }
Name: Susan
{ Gender = Male, Age = 20 }
Name: Tom
Name: Dick

Last Run:	8:54:12 am
Compile:	0.237s
Execute:	0.031s
Memory:	24kb
CPU:	0.062s

View IL Code