URI-1036

URI Online Judge | 1036

Bhaskara's Formula

Adapted by Neilor Tonin, URI  Brazil

Timelimit: 1

Problem link click here

Read 3 floating-point numbers. After, print the roots of bhaskara’s formula. If it's impossible to calculate the roots because a division by zero or a square root of a negative number, presents the message “Impossivel calcular”.

Input

Read 3 floating-point numbers A, B and C.

Output

Print the result with 5 digits after the decimal point or the message if it is impossible to calculate.

Input Samples	Output Samples
10.0 20.1 5.1	R1 = -0.29788 R2 = -1.71212

0.0 20.0 5.0

Impossivel calcular

10.3 203.0 5.0

R1 = -0.02466 R2 = -19.68408

10.0 3.0 5.0

Impossivel calcular

Solution...

#include<stdio.h>
#include<math.h>
int main(){
        float a,b,c,R1,R2,z;
        scanf("%f%f%f",&a,&b,&c);
        z=b*b-4*a*c;
        R1=(-b+sqrt(z))/(2*a);
        R2=(-b-sqrt(z))/(2*a);


       if(a==0 || z<0){
                printf("Impossivel calcular\n");
       }

       else{
              printf("R1 = %.5f\nR2 = %.5f\n",R1,R2);
       }
       return 0;
}