#include <GL/glut.h>
void display(void) {
  glClearColor(0, 1, 0, 0);
  glClear(GL_COLOR_BUFFER_BIT);
  glFlush();
}
int main(int argc, char **argv) {
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
  glutInitWindowSize(500, 500);
  glutCreateWindow("GLUT: Exercicio 0");
  glutDisplayFunc(display);
  glutMainLoop();
  return 0;
}