using System;

​

namespace StringsAdvanced

{

    public class MainClass

    {

        public static void Main(string[] args)

        {

            //MiddleCharacter("middle");                    // 1.

            //NoOfTimes("Fancy fifth fly aloof", "f");      // 2.

            //(Ho(Ho(Ho())));                               // 3.

            //Likes(likes);                                 // 4.

​

        }

​

​

​

        private static string Likes(string [] likes)

        {

            /*

             * You probably know the "like" system from Facebook and other pages. 

             * People can "like" blog posts, pictures or other items. 

             * We want to create the text that should be displayed next to such an item.

             * Implement a function likes :: [String] -> String, which must take in input array, 

             * containing the names of people who like an item. It must return the display text as shown in the examples:

             * likes [] // must be "no one likes this" likes ["Peter"] // must be "Peter likes this" 

             * likes ["Jacob", "Alex"] // must be "Jacob and Alex like this" 

             * likes ["Max", "John", "Mark"] // must be "Max, John and Mark like this" 

             * likes ["Alex", "Jacob", "Mark", "Max"] // must be "Alex, Jacob and 2 others like this"

             */

​

            if (likes.Length == 0)

            {

                return "no one likes this";

            }

            else if (likes.Length == 1)

            {

                return $"{likes[0]} likes this";

            }

            else if (likes.Length == 2)

            {

                return $"{likes[0]} and {likes[1]} likes this";

            }

            else if (likes.Length == 3)

            {

                return $"{likes[0]}, {likes[1]} and {likes[2]} likes this";

            }

            else

            {

                return $"{likes[0]}, {likes[1]} and {likes.Length - 2} others like this";

            }

        }

​

​

​

        private static string Ho(string  ho ="")

        {

            /*

             * ho(); // should return "Ho!" 

             * ho(ho()); // should return "Ho Ho!" 

             * ho(ho(ho())); // should return "Ho Ho Ho!" 

             * 

             * each call of ho() must add a "Ho" to the string the "Ho"'s must be separated 

             * by a space at the end of the string, there must be an exclamation mark (!), 

             * without a space

             */

​

            //int functionCall = 0;

​

            if(ho == "")

            {

                return "Ho !";

            }

            else

            {

                return "Ho " + ho;

            }

​

        }

​

​

​

​

        private static int NoOfTimes(string userInput, string userChar)

        {

            /* 2.

             * The goal of this kata is to write a function that takes two inputs: 

             * a string and a character. 

             * The function will count the number of times that character appears 

             * in the string. 

             * The count is case insensitive.

             */

​

            //string userInput = "Fancy fifth fly aloof";

            //string userChar = "F";

​

            string temp = "";

​

            int counter = 0;

​

​

            for (int i = 0; i < userInput.Length; i++)

            {

                temp = userInput[i].ToString().ToLower();

                if (temp == userChar.ToLower())

                {

                    counter++;

                }

            }

​

            //Console.WriteLine(counter);

            return counter;

        }

​

​

​

        private static string MiddleCharacter(string userString)

        {

            /* 1. You are going to be given a word. 

            Your job is to return the middle character of the word. 

            If the word's length is odd, return the middle character. 

            If the word's length is even, return the middle 2 characters. 

            */

            //string userString = "i";

​

            string outputString = "";

​

            int middle = userString.Length / 2;

​

            if (userString.Length % 2 == 0)

            {

                outputString = userString.Substring(middle - 1, 2);

            }

            else if (userString.Length % 2 != 0)

            {

                outputString = userString.Substring(middle, 1);

            }

​

            //Console.WriteLine(outputString);

            return outputString;

        }

​

​

​

    }

}

​