Dev - C++ - PROGRAMAR EN C. URGENTE

#include <stdio.h>

#include <math.h>

#define ROOT(a,b,c) (sqrt((b*b)-(4*a*c)))

#define PI 3.1416

/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main(int argc, char *argv[]) {

	int option=0;

	float a,b,c;

	float x,y;

	float r,h,volume;

	printf("MENU");

	printf("====");

	switch(option)

	{

		case 0:

			printf("A. solution to  ax2+bx+c=0");

			printf("Type coeficients:");

			scanf("%f,%f,%f",&a,&b,&c);

			if(a==0){

				printf("a have to be different to 0");

				return -1;

			}

			if((b*b-4*a*c)<0){

				printf("The value inside the root have to be positive or 0");

				return -2;

			}

		x=(-b+ROOT(a,b,c))/(2*a);

		y=(-b-ROOT(a,b,c))/(2*a);

		printf("\nSolution 1: %f",x);

		printf("\nSolution 2: %f",y);

		case 1:

			printf("B. solution to volumen of cone");

			printf("Please, enter the radius and the high separated by coma:");

			scanf("%f,%f",r,h);

			volume=(PI*r*r*h)/(3);

			printf("Volume:%f",volume);

		default:

			printf("F**K ME I'M ENGEENIER");

		}

	return 0;

}