**Solution:**

Program:-
#include<stdio.h>
#include<graphics.h>
#include<conio.h>
#include<stdlib.h>
int main()
{
int gd,gm,n,*x,i,k=0;
//window coordinates int wx1=220,wy1=140,wx2=420,wy2=140,wx3=420,wy3=340,wx4=220,wy4=340;
int w[]={220,140,420,140,420,340,220,340,220,140};//array for drawing window
detectgraph(&gd,&gm);
initgraph(&gd,&gm,"c:\\turboc3\\bgi"); //initializing graphics
printf("Window:-");
setcolor(RED); //red colored window
drawpoly(5,w); //window drawn
printf("Enter the no. of vertices of polygon: ");
scanf("%d",&n);
x = malloc(n*2+1);
printf("Enter the coordinates of points:\n");
k=0;
for(i=0;i<n*2;i+=2) //reading vertices of polygon
{
printf("(x%d,y%d): ",k,k);
scanf("%d,%d",&x[i],&x[i+1]);
k++;
}
x[n*2]=x[0]; //assigning the coordinates of first vertex to last additional vertex for drawpoly method.
x[n*2+1]=x[1];
setcolor(WHITE);
drawpoly(n+1,x);
printf("\nPress a button to clip a polygon..");
getch();
setcolor(RED);
drawpoly(5,w);
setfillstyle(SOLID_FILL,BLACK);
floodfill(2,2,RED);
gotoxy(1,1); //bringing cursor at starting position
printf("\nThis is the clipped polygon..");
getch();
cleardevice();
closegraph();
return 0;
}