Split string by space

CSharp · Console

/Program.cs

using System;
using System.Linq;
					
public class Program
{
	public static void Main()
	{
		var inputString = "1 20";
		var filesNumbers = new[] {1, 2, 3};
		
		int[] splitNums = inputString.Split(' ').Select(int.Parse).ToArray();

        foreach (var fileNumber in filesNumbers)
		{
			if (splitNums.Contains(fileNumber))
			{
			    Console.WriteLine(fileNumber);
			}
		}
	}
}