#include<windows.h>
#include<GL/glut.h>
#include<bits/stdc++.h>

using namespace std;
int r=50;
void plot (void)
{
    float theta;
    glColor3f(1.0,0.0,0.0);
    glPointSize(3);
    glBegin(GL_POINTS);
    for (int **0; i<360; i++)
    {
        theta=(3.14*i)/180;
        glVertex2f(r*cos(theta),r*sin(theta));
    }
    glEnd();

glFlush();
}


void init(void)
{
    glClearColor(1.0,1.0,1.0,1.0);
    glClear(GL_COLOR_BUFFER_BIT);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluOrtho2D(-100,100,-100,100);
}
int main ()
{
    glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(500,500);
    glutInitWindowPosition(100,100);
    glutCreateWindow("Output");
    init();
    glutDisplayFunc(plot);
    glutMainLoop();
}