ci: 💚 Fix file structure

Iteration/Iterations.cs

@@ -2,5 +2,64 @@ namespace Iteration;
 
 public class Iterations
 {
-    
+    public static int Reverseint(int n)
+    {
+        int result = 0;
+        if (n > 4)
+        {
+            for (int i = 0; i <= n; i++)
+            {
+                result = result * 10 + n % 10;
+                n /= 10;
+            }
+
+            if (n == 1)
+            {
+                return result * 10 + n;
+            }
+        }
+        else if (n < 4)
+        {
+            for (int i = 0; i >= n; i--)
+            {
+                result = result * 10 + n % 10;
+                n /= 10;
+            }
+
+            if (n == -1)
+            {
+                return result * 10 + n;
+            }
+        }
+        else
+        {
+            return n;
+        }
+
+    return result;
+    }
+
+    public static bool FindSub(string s, string sub)
+    {
+        if (sub == "")
+        {
+            throw new ArgumentException("sub cannot be empty");
+        }
+        string phrase = s;
+        string[] word = s.Split(' ');
+        foreach (var mot in word)
+        {
+            if (mot == sub)
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    public static bool FirstUpper(string s, string sub)
+    {
+        return true;
+    }
 }

Iteration/Program.cs

@@ -1,3 +1,3 @@
 // See https://aka.ms/new-console-template for more information
 
-Console.WriteLine("Hello, World!");
+Console.WriteLine();