import java.util.Scanner;
public class Main{
static double func1(double a,double b,double c){
return Math.pow(b,2) - 4*a*c;
}
static double func2(double a, double b, double c){
return (-1*b + Math.pow(func1(a, b, c),0.5))/(2*a);
}
static double func3(double a, double b, double c){
return (-1*b - Math.pow(func1(a, b, c),0.5))/(2*a);
}
public static void main(String[] args){
Scanner input = new Scanner(System.in);
double a = input.nextDouble();
double b = input.nextDouble();
double c = input.nextDouble();
if(func1(a, b, c) >= 0){
double bigger = (func3(a,b,c) > func2(a,b,c)) ? func3(a,b,c) : func2(a,b,c);
System.out.printf("%.1f\n", bigger);
}
else if (func1(a,b,c)< 0){
System.out.println("complex");
}
}
}
어디가 잘못된지 잘 모르겠습니다...
