Código IV

#include <stdio.h>
#include <math.h>

/* Function using reference to return 2 values
    Values x0 and x1 are parameters. Others are values.*/
int bask(double a, double b, double c, double* x0, double* x1){
    /* Returns -1 if delta <0*/
    double delta = b*b - 4*a*c;
    if(delta < 0){
        return -1;
    }
    /* Values go to x0 and x1 */
    *x0 = (delta-b)/2*a;
    *x1 = (delta+b)/2*a;
    /* Function has roots */
    return 1;
}

int main(){
    printf("Inform a, b and c\n");
    double a, b, c, x0, x1;
    scanf("%lf %lf %lf", &a, &b, &c);
    /* x0 and x1 passed by reference*/
    int r = bask(a, b, c, &x0, &x1);
    if(r == 1)
        printf("Solution: x0 = %lf, x1= %lf\n", x0, x1);
    else
        printf("Equation has no real solutions\n");
}