三角形类型判断OJ

#include<stdio.h>
#include<math.h>
int main()
{
    int n;
    scanf("%d",&n);
    while(n--)
    {
        float a,b,c;
        float temp;
        int issan = 1;
        float s;
        float h;
        scanf("%f %f %f",&a,&b,&c);
        if(a<b){ temp = a;a=b;b = temp;}
        if(a<c){ temp = a;a=c;c = temp;}
        if(b<c){ temp = b;b=c;c = temp;}
        
        if(b+c<a) printf("no triangle\n");
        else if(fabs(b-c)<0.001)
        {
            s = (a+b+c)/2;
            h = sqrt(s*(s-a)*(s-b)*(s-c));
            if(fabs(a-b)<0.001) printf("equilateral triangle, %.1f\n",h);
            else if(fabs(a*a-b*b-c*c) < 0.001) printf("isosceles right triangle, %.1f\n",h);
            else printf("isosceles triangle, %.1f\n",h);
        }
        else if(fabs(a*a-b*b-c*c) < 0.001) 
        {
            s = (a+b+c)/2;
            h = sqrt(s*(s-a)*(s-b)*(s-c));
            printf("right triangle, %.1f\n",h);
        }
        else 
        {
            s = (a+b+c)/2;
            h = sqrt(s*(s-a)*(s-b)*(s-c));
            printf("general triangle, %.1f\n",h);
        }
            
        
    }
    
}