can someone check my codes

[gali01]

    #include <stdafx.h>
    #include <stdlib.h>
    #include <windows.h>
    #include <GL/glut.h>
    using namespace std;
    int a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0,i=0,j=0,k=0,l=0;
    int rumus(int x1, int y1, int x2, int y2, int x){
    int y=(x*(y2-y1)+x2*y1-x1*y2)/(x2-x1);
    return y;
    }

    void tampilkan()
    {
    glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glClearColor(0,0,0,0);
    glLoadIdentity();
    glBegin(GL_QUADS);
    glColor3f(0.0,0.0,1.0);
    glVertex2d(2,2);
    glVertex2d(5,2);
    glVertex2d(8+c,11);
    glVertex2d(7+d,rumus(7,14,2,11,7+d));
    glEnd();
    glBegin(GL_QUADS);
    glVertex2d(7+e,rumus(7,14,5,11,7+e));
    glVertex2d(9+f,rumus(9,14,2,11,9+f));
    glVertex2d(14+g,rumus(14,2,2,14,14+g));
    glVertex2d(11+h,rumus(11,2,5,14,11+h));
    glEnd();
    glBegin(GL_QUADS);
    glVertex2d(6+i,rumus(6,5,5,2,6+i));
    glVertex2d(6+j,rumus(6,7,12,2,6+j));
    glVertex2d(10+k,rumus(10,7,12,5,10+k));
    glVertex2d(10+l,rumus(10,5,5,5,10+l));
    glEnd();
    glFlush();
    Sleep(500);

    if(8+c>5){
    c-;}
    if(7+d>2){
    d-;}
    if(7+e>5){
    e-;}
    if(9+f>2){
    f-;}
    if(14+g>2){
    g-;}
    if(11+h>5){
    h-;}
    if(6+i>5){
    i-;}
    if(6+j<12){
    j++;}
    if(10+k<12){
    k++;}
    if(10+l>5){
    l-;}
    }
    void init (void)
    {
    glMatrixMode(GL_PROJECTION);
    gluOrtho2D(0,16,0,16);
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    }

    int main(int argc, char **argv)

    {
    glutInit(&argc,argv);
    glutInitDisplayMode (GLUT_SINGLE);
    glutInitWindowSize (500,500); //Ukuran window
    glutCreateWindow ("Morphing_Alifah 09032");
    glutDisplayFunc(tampilkan);
    init ();
    glutIdleFunc(tampilkan);
    glutMainLoop();
    return 0;
    }

[nmaillet]

For what?

[WaltP]

Grossly unreadable.

[m4ster_r0shi]

@OP: Moschops is right. I fixed these errors, compiled the code you posted and got the expected output.