Data commit

Task/Bulls-and-cows/C-sharp/bulls-and-cows.cs

@@ -0,0 +1,79 @@
+using System;
+
+namespace BullsnCows
+{
+    class Program
+    {
+
+        static void Main(string[] args)
+        {
+            int[] nums = new int[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+            KnuthShuffle<int>(ref nums);
+            int[] chosenNum = new int[4];
+            Array.Copy(nums, chosenNum, 4);
+
+            Console.WriteLine("Your Guess ?");
+            while (!game(Console.ReadLine(), chosenNum))
+            {
+                Console.WriteLine("Your next Guess ?");
+            }
+
+            Console.ReadKey();
+        }
+
+        public static void KnuthShuffle<T>(ref T[] array)
+        {
+            System.Random random = new System.Random();
+            for (int i = 0; i < array.Length; i++)
+            {
+                int j = random.Next(array.Length);
+                T temp = array[i]; array[i] = array[j]; array[j] = temp;
+            }
+        }
+
+        public static bool game(string guess, int[] num)
+        {
+            char[] guessed = guess.ToCharArray();
+            int bullsCount = 0, cowsCount = 0;
+
+            if (guessed.Length != 4)
+            {
+                Console.WriteLine("Not a valid guess.");
+                return false;
+            }
+
+            for (int i = 0; i < 4; i++)
+            {
+                int curguess = (int) char.GetNumericValue(guessed[i]);
+                if (curguess < 1 || curguess > 9)
+                {
+                    Console.WriteLine("Digit must be ge greater 0 and lower 10.");
+                    return false;
+                }
+                if (curguess == num[i])
+                {
+                    bullsCount++;
+                }
+                else
+                {
+                    for (int j = 0; j < 4; j++)
+                    {
+                        if (curguess == num[j])
+                            cowsCount++;
+                    }
+                }
+            }
+
+            if (bullsCount == 4)
+            {
+                Console.WriteLine("Congratulations! You have won!");
+                return true;
+            }
+            else
+            {
+                Console.WriteLine("Your Score is {0} bulls and {1} cows", bullsCount, cowsCount);
+                return false;
+            }
+        }
+    }
+}