using System;

using System.Globalization;

​

public class Program

{

    public static void Main()

    {

        Console.WriteLine(StringContainsAnother("Langley", "City of Langley"));

        Console.WriteLine(StringCompare("Langley", "City of Langley"));

    }

​

    private static double StringCompare(string a, string b)

    {

        if (a == b)

            return 100;

        if ((a.Length == 0) || (b.Length == 0))

            return 0;

        // a = Strings.CREAString.RemoveDiacritics(Strings.CREAString.NormalizeString(a))

        // b = Strings.CREAString.RemoveDiacritics(Strings.CREAString.NormalizeString(b))

        double maxLen = a.Length > b.Length ? a.Length : b.Length;

        int minLen = a.Length < b.Length ? a.Length : b.Length;

        int sameCharAtIndex = 0;

        for (int i = 0; i <= minLen - 1; i++)

        {

            if (a[i] == b[i])

                sameCharAtIndex += 1;

        }

​

        return sameCharAtIndex / maxLen * 100;

    }

​

    private static bool StringContainsAnother(string a, string b)

    {

        if (!string.IsNullOrEmpty(a) && !string.IsNullOrEmpty(b))

        {

            return a.ToLower().Contains(b.ToLower()) || b.ToLower().Contains(a.ToLower());

        }

        return false;

    }

}