static void Main(string[] args)
{
Predicate <int> con = delegate(int x) { return(x > 0); };
int[] arr = Enumerable.Range(0, 10000)
.Select(r => rnd.Next(-5000, 5000)).ToArray();
Console.WriteLine(sw.CheckTime(() => FindPositiveElement(arr), 1000));
Console.WriteLine(sw.CheckTime(() => FindPositiveElement(arr, PositiveCondition), 1000));
Console.WriteLine(sw.CheckTime(() => LambdaExpression(arr, con), 1000));
Console.WriteLine(sw.CheckTime(() => LambdaExpression(arr, (x) => x > 0), 1000));
Console.WriteLine(sw.CheckTime(() => arr.Where(x => x > 0), 1000));
Console.ReadKey();
}
