juanplopes/gist:757685

## gistfile1.cs
//C#

public T FindInList<T>(IEnumerable<T> source, IEnumerable<T> target)
{
        return source.First(target.Contains)

        //return source.Intersect(target).First();
}

//F#

let findInList source target =
          source |> List.pick (fun s -> target |> List.tryFind (fun (y,_) -> y = s))
	//C#

	public T FindInList<T>(IEnumerable<T> source, IEnumerable<T> target)
	{
	return source.First(target.Contains)

	//return source.Intersect(target).First();
	}

	//F#

	let findInList source target =
	source \|> List.pick (fun s -> target \|> List.tryFind (fun (y,_) -> y = s))