蓝桥杯算法提高VIP-Quadratic Equation-题解（Java代码）

解题思路:

注意事项:

参考代码:

import java.util.Scanner;

public class Main {

public static void main(String[] args){

Scanner scanner=new Scanner(System.in);

double a=scanner.nextDouble();

double b=scanner.nextDouble();

double c=scanner.nextDouble();

double m=Math.pow(b,2)-4*a*c;

if(m<0)

System.out.print("无解");

else if(m==0)

System.out.printf("%.2f",(-b)/(2*a));

else {

double x1=(-b+Math.sqrt(m))/(2*a);

double x2=(-b-Math.sqrt(m))/(2*a);

if(x1>x2) {

System.out.printf("%.2f ",x1);

System.out.printf("%.2f",x2);

}

else {

System.out.printf("%.2f ",x2);

System.out.printf("%.2f",x1);

}

}

}

}