Exercise 12: WAP to Draw Pie Chart. (In this program, we will draw multiple pie slices using pieslice function, having centre at mid of the screen and radius of 120 pixels with different start angle and end angle. Before drawing a pie slice we change the fill color using setfillstyle function.)

#include <graphics.h>
#include <conio.h>

void main() {
    int gd = DETECT, gm;
    initgraph(&gd, &gm, "c:\\Turboc3\\BGI");
	int x,y;
 
    settextstyle(BOLD_FONT,HORIZ_DIR,2);
    outtextxy(220,10,"PIE CHART");
    /* Setting cordinate of center of circle */
    x = getmaxx()/2;
    y = getmaxy()/2;
 
    settextstyle(SANS_SERIF_FONT,HORIZ_DIR,1);
    setfillstyle(SOLID_FILL, RED);
    pieslice(x, y, 0, 60, 120);
    outtextxy(x + 140, y - 70, "FOOD");
 
    setfillstyle(SOLID_FILL, YELLOW);
    pieslice(x, y, 60, 160, 120);
    outtextxy(x - 30, y - 170, "RENT");
    
    setfillstyle(SOLID_FILL, GREEN);
    pieslice(x, y, 160, 220, 120);
    outtextxy(x - 250, y, "ELECTRICITY");
    
    setfillstyle(SOLID_FILL, BROWN);
    pieslice(x, y, 220, 360, 120);
    outtextxy(x, y + 150, "SAVINGS");
 
    getch();
    closegraph();
}