compile c# online

Language: Layout:

//C# 'Hello, world'
//Rextester.Program.Main is the entry point for your code. Don't change it.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            
            var enumerable = new[] {54, 107, 24, 223, 134, 65, 36, 7342, 812, 96, 106};
            Console.WriteLine(String.Join(",",enumerable.ToArray()));
            var rangeSize = 2;
            var range = enumerable.Range((x) => x == 134, rangeSize);
            Console.WriteLine(String.Join(",",range.ToArray()));
        }
    }
    public static class EnumerableExtensions
    {
        
        public static IEnumerable<T> Range<T>(this IEnumerable<T> enumerable, Func<T,bool> selector, int size)
        {
            Queue<T> queue = new Queue<T>();
            bool found = false;
            int count = 0;
            foreach(T item in enumerable)
            {
                    if(found)
                    {
                        if(count++ < size)
                        {
                            yield return item;
                        }
                        else
                        {
                            yield break;
                        }
                    }
                    else
                    {
                        if(queue.Count>size)
                            queue.Dequeue();
        
                    if(selector(item))
                    {
                        found = true;
                        foreach(var stackItem in queue)
                            yield return stackItem;
                        
                        yield return item;
                        
                        
                    }
                    else
                    {
                        queue.Enqueue(item);
                    }
                }
            }
        }
    }
    
}

Show compiler warnings [ + ] Show input
Compilation time: 0.23 sec, absolute running time: 0.12 sec, cpu time 0.09 sec, average memory usage: 16 Mb, average nr of threads: 4