C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
					
	 public class Program
    {public static void ChangeArr(int []mas, int a)
    {
        for (int i=0; i<mas.Length;i++)
        {if (mas[i]==a)
        mas[i]=-a;
        }
    }
        public static void Main(string[] args)
        {
            int [] mas ={1,2,1,5,6,-9};
            int n=int.Parse(Console.ReadLine());
            ChangeArr(mas,n);
            for (int i=0; i<mas.Length;i++)
            {Console.WriteLine(mas[i]);}
	}
}

 
using System;
                    
     public class Program
    {public static void ChangeArr(int []mas, int a)
    {
        for (int i=0; i<mas.Length;i++)
        {if (mas[i]==a)
        mas[i]=-a;
        }
    }
        public static void Main(string[] args)
        {
            int [] mas ={1,2,1,5,6,-9};
            int n=int.Parse(Console.ReadLine());
            ChangeArr(mas,n);
            for (int i=0; i<mas.Length;i++)
            {Console.WriteLine(mas[i]);}
    }
}

Roslyn 2.0 Compiler; Environment version: 4.0.30319.42000

<root xmlns="https://stackoverflow.com/questions/55914228/how-do-i-declare-a-xdocument-namespace-globally-in-c" attr1="attribute one" attr2="attribute two">
  <title>this is the root</title>
  <xhtml>
    <div id="wrapper">
      <p style="first">
        <em>hello</em> world!</p>
    </div>
  </xhtml>
  <element />
  <anotherElement>
    <someNestedElement>Some text content</someNestedElement>
  </anotherElement>
</root>

Last Run:	7:05:04 am
Compile:	0.252s
Execute:	0.047s
Memory:	44.16kb
CPU:	0.125s

View IL Code