Untitled

#include <graphics.h>
#include <iostream>
#include <math.h>
#include <dos.h>
 
void main( )
{
    float x,y,x1,y1,x2,y2,dx,dy,step;
    int i,gd=DETECT,gm;
     
    initgraph(&gd,&gm,"c:\\turboc3\\bgi");
     
    cout<<"Enter the value of x1 and y1 : ");
    cin>>x1>>y1;
    cout<<"Enter the value of x2 and y2 : ");
    cin>>x2>>y2;
     
    dx=abs(x2-x1);
    dy=abs(y2-y1);
     
    if(dx>=dy)
    step=dx;
    else
    step=dy;
     
    dx=dx/step;
    dy=dy/step;
     
    x=x1;
    y=y1;
     
    i=1;
    while(i<=step)
    {
    putpixel(x,y,5);
    x=x+dx;
    y=y+dy;
    i=i+1;
    delay(100);
    }
     
    closegraph();
}