Sumar 100 números solicitados al usuario, mostrar la suma total

// 
// main.cpp
// 
// 
// 
// Based on the code written by E.C. Stoner 
// for the course CST112 2016
// 
//
// 
//
//
//
//
//

#include "Simple_window.h"   // get access to our window library
#include "Graph.h"           // get access to our graphics library facilities

int main()
{
  using namespace Graph_lib; // our graphics facilities are in Graph_lib

  Point tl(100, 100);        // to become top left  corner of window

  Simple_window win(tl, 600, 400, "Canvas");    // make a simple window

  Polygon poly;                        // make a shape (a polygon)

  poly.add(Point(300, 200));            // add a point
  poly.add(Point(350, 100));            // add another point
  poly.add(Point(400, 200));            // add a third point 

  poly.set_color(Color::red);          // adjust properties of poly