diff --git a/cpp_1/main.cpp b/cpp_1/main.cpp
index 746af00..5bdc290 100644
--- a/cpp_1/main.cpp
+++ b/cpp_1/main.cpp
@@ -26,7 +26,7 @@ void readfile(string file)
             cout << line << '\n';
         }
 
-        myfile.close();
+        myfile.close(); 
     }
 }
 
diff --git a/cpp_1/testfile.txt b/cpp_1/testfile.txt
index e69de29..38b83cd 100644
--- a/cpp_1/testfile.txt
+++ b/cpp_1/testfile.txt
@@ -0,0 +1,5 @@
+Hallo Welt!
+Hallo Welt!
+Hallo Welt!
+Hallo Welt!
+Hallo Welt!
diff --git a/fibonacci/fib b/fibonacci/fib
new file mode 100755
index 0000000..bc4c386
Binary files /dev/null and b/fibonacci/fib differ
diff --git a/fibonacci/main.cpp b/fibonacci/main.cpp
new file mode 100644
index 0000000..1be8eec
--- /dev/null
+++ b/fibonacci/main.cpp
@@ -0,0 +1,14 @@
+#include<iostream>
+
+int fib(int n)
+{
+    return n < 2 ? 1 : fib(n-2)+ fib(n-1);
+}
+
+int main()
+{
+    std::cout << "Geben sie an die wievielte fib. Zahl sie suchen: ";
+    int n = 0;
+    std::cin >> n;
+    std::cout << "fib(" << n << ") = " << fib(n) << "\n";
+}
\ No newline at end of file
diff --git a/fibonacci/makefile b/fibonacci/makefile
new file mode 100644
index 0000000..72eb9b0
--- /dev/null
+++ b/fibonacci/makefile
@@ -0,0 +1,5 @@
+dev: compile run
+compile:
+	g++ -o fib main.cpp
+run: 
+	./fib	
\ No newline at end of file