蓝桥杯算法提高VIP-Quadratic Equation

解题思路:

double sqrt(double x)

float sqrtf(float x)

long double sqrtl(long double x)
注意事项:

参考代码:

#include<stdio.h>
#include<math.h>
int main()
{
	double a,b,c;
	scanf("%lf%lf%lf",&a,&b,&c);
	double k=b*b-4*a*c;
	double x1=(-b-sqrt(k))/(2*a);
	double x2=(-b+sqrt(k))/(2*a);
	if(x1>x2)
	{
	printf("%0.2lf %0.2lf",x1,x2);
	}
	else
	{
	    printf("%0.2lf %0.2lf",x2,x1);
	}
	return 0;
}