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#include 
Midpointline(x0,y0,x1,y1,YELLOW) 
int x0,y0,x1,y1,YELLOW; 
{int a,b,delta1,delta2,d,x,y; 
a=y0-y1; 
b=x1-x0; 
d=2*a+b; 
delta1=2*a; 
delta2=2*(a+b); 
x=x0; 
y=y0; 
putpixel(x,y,YELLOW); 
while(x