mirror of
https://github.com/Kiritow/OJ-Problems-Source.git
synced 2024-03-22 13:11:29 +08:00
33 lines
475 B
C++
33 lines
475 B
C++
#include<stdio.h>
|
|
#include<math.h>
|
|
int main()
|
|
{
|
|
int t;
|
|
int a,b,c;
|
|
double x1,x2,x,temp;
|
|
scanf("%d",&t);
|
|
while(t--)
|
|
{
|
|
scanf("%d%d%d",&a,&b,&c);
|
|
x=b*b-4*a*c;
|
|
if(x<0)
|
|
printf("NO\n");
|
|
else if(x==0)
|
|
{
|
|
x1=-1.0*b/(2*a);
|
|
printf("%.2f\n",x1);
|
|
}
|
|
else if(x>0)
|
|
{
|
|
x1=(-1.0*b-sqrt(x))/(2*a);
|
|
x2=(-1.0*b+sqrt(x))/(2*a);
|
|
if(x1>x2)
|
|
{
|
|
temp=x1;x1=x2;x2=temp;
|
|
}
|
|
printf("%.2f %.2f\n",x1,x2);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|