diff --git a/05_OO/MP/AnsiConsoleDemo.cpp b/05_OO/MP/AnsiConsoleDemo.cpp
index 136daf0..f149f11 100644
--- a/05_OO/MP/AnsiConsoleDemo.cpp
+++ b/05_OO/MP/AnsiConsoleDemo.cpp
@@ -1,6 +1,6 @@
 #include <iostream>
 #include <cmath>
-#include "AnsiConsole.h"
+#include "../../helpers/AnsiConsole.h"
 
 /*
  see
diff --git a/05_OO/MP/shapes_main.cpp b/05_OO/MP/shapes_main.cpp
index 33349b9..b514f01 100644
--- a/05_OO/MP/shapes_main.cpp
+++ b/05_OO/MP/shapes_main.cpp
@@ -6,7 +6,7 @@ struct Position {
     int x;
     int y;
 
-    Position(int x_ = 0, int y_ = 0) {
+    explicit Position(int x_ = 0, int y_ = 0) {
         x = x_;
         y = y_;
     }
@@ -16,7 +16,7 @@ class Point {
 protected:
     Position _position;
 public:
-    Point(int x = 0, int y = 0);
+    explicit Point(int x = 0, int y = 0);
 
     void draw();
 };
@@ -34,7 +34,7 @@ protected:
     Position _position;
     int _radius;
 public:
-    Circle(int x = 0, int y = 0, int radius = 0);
+    explicit Circle(int x = 0, int y = 0, int radius = 0);
 
     void draw();
 };
@@ -55,10 +55,10 @@ void Circle::draw() {
         double x_relative = double(i) - double(x_start);
         double h = sqrt(x_relative * (x_stop - x_start - x_relative));
         ansiConsole.printText(_position.x + int(x_relative) - _radius / 2,
-                              _position.y + h, "#",
+                              static_cast<int>(_position.y + h), "#",
                               Colors::GREEN);
         ansiConsole.printText(_position.x + int(x_relative) - _radius / 2,
-                              _position.y - h, "#",
+                              static_cast<int>(_position.y - h), "#",
                               Colors::GREEN);
 
     }
@@ -71,7 +71,7 @@ protected:
     int height;
 
 public:
-    Rectangle(int x = 0, int y = 0, int width = 0, int height = 0);
+    explicit Rectangle(int x = 0, int y = 0, int width = 0, int height = 0);
     void draw();
 };
 
@@ -103,20 +103,20 @@ int main(int argc, char **argv) {
     // x and y are more like column and row
     ansiConsole.printText(5, 5, "Hello, World!");
 
-    Point *p = new Point(10, 10);
+    auto *p = new Point(10, 10);
     p->draw();
 
-    Point *p2 = new Point(2, 10);
+    auto *p2 = new Point(2, 10);
     p2->draw();
 
 
-    Circle *c = new Circle(30, 15, 10);
+    auto *c = new Circle(30, 15, 10);
     c->draw();
 
-    Point *p3 = new Point(30, 15);
+    auto *p3 = new Point(30, 15);
     p3->draw();
 
-    Rectangle *r = new Rectangle(20, 20, 20, 20);
+    auto *r = new Rectangle(20, 20, 20, 20);
     r->draw();
 
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d7ab7cb..1c1cfd1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,7 @@ add_executable(04_UDEF_Testat 04_UDEF/Testat/Testat.cpp)
 
 add_executable(05_OO_MP 05_OO/MP/shapes_main.cpp helpers/AnsiConsole.cpp)
 add_executable(05_OO_Testat 05_OO/Testat/shapes_main.cpp helpers/AnsiConsole.cpp)
+add_executable(05_OO_Demo 05_OO/MP/AnsiConsoleDemo.cpp helpers/AnsiConsole.cpp)
 
 add_executable(06_POLY_MP 06_POLY/MP/main_mp5_POLY.cpp)
 #add_executable(06_POLY_Testat 06_POLY/Testat/main_mp5_POLY.cpp)