#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_COEFFICIENTS 100

/*double evaluate_polynomial(double x, double coefficients[], int degree) {
    double result = coefficients[degree];
    for (int i = degree - 1; i >= 0; i--) {
        result = result * x + coefficients[i];
    }
    return result;
}*/

double vratenie (double x, double b, double v, double c,) {
//3x2+2x+1
//(m*(x*x)) + (n*x) + o
double result = 0;
result = (b*(x*x)) + (v*x) + c;
return result;
}

//double vratenie2 (double x, double b, double v, double c,) {
//2x2+x+1
//double result = 0;
//result = 
//return result;
//}



int main() {

    double x = 0, b = 0, v = 0, c = 0 ;

    double result = 0;
    char input[5];

    //tu spracovavam x
    fgets(input, sizeoff(input), stdin);

        if (\input[0] == '\0' ){printf("Chyba: Neplatná hodnota x.\n");    
        return 1;  

    }   else{
        x= atof(input);
        printf("prijate cislo:%.2f\n"x)
        memset(input, '\0', sizeoff(input));
    }

    //tu spracovavam b
    fgets(input, sizeoff(input), stdin);

        if (\input[0] == '\0' ){printf("Chyba: Neplatná hodnota x.\n");    
        return 1;  

    }   else{
        b= atof(input);
        printf("prijate cislo:%.2f\n"b)
        memset(input, '\0', sizeoff(input));
    }

    //tu spracovavam v
    fgets(input, sizeoff(input), stdin);

        if (\input[0] == '\0' ){printf("Chyba: Neplatná hodnota x.\n");    
        return 1;  

    }   else{
        v= atof(input);
        printf("prijate cislo:%.2f\n"v)
        memset(input, '\0', sizeoff(input));
    }

    //tu spracuvavam c
    fgets(input, sizeoff(input), stdin);

        if (\input[0] == '\0' ){printf("Chyba: Neplatná hodnota x.\n");    
        return 1;  

    }   else{
        c= atof(input);
        printf("prijate cislo:%.2f\n"c)
        memset(input, '\0', sizeoff(input));
    }
        if(x!= 0){
        if(b!= 0){
        if(v!=0){
        if(c!=0){
                    result = vratenie (x, b, v, c);

                    }
                    else {
                        result= vratenie2 (x, b, v);                      
                    }
                }
                //else{
                    //result= vratenie3 (x, b);
                }
            }
            //else{
            //result= vratenie4 (x);
           // }

        //}
       


    

    printf ("Vysledok je: %.2f\n", result );




    //float coefficients[] = {57.0};
    //int degree = 1; 

   /* double result = evaluate_polynomial(x, coefficients, degree - 1);
    printf("Vysledok je: %.2f\n", result);*/

    return 0;
}