84分求助

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c,x,y,z;
    scanf("%d %d %d",&x,&y,&z);
    a=max(max(x,y),z);
    c=min(min(x,y),z);
    b=x+y+z-a-c;
    bool tri,rui,zhi,dun,dy,db;
    tri=b+c>a;
    zhi=pow(c,2)+pow(b,2)==pow(a,2);
    rui=pow(c,2)+pow(b,2)>pow(a,2);
    dun=pow(c,2)+pow(b,2)<pow(a,2);
    dy=a==b||b==c||c==a;
    db=a==b==c;
    if(tri==1)
    {
        if(zhi==1)printf("Right triangle\n");
        if(rui==1)printf("Acute triangle\n");
        if(dun==1)printf("Obtuse triangle\n");
        if(dy==1)printf("Isosceles triangle\n");
        if(db==1)printf("Equilateral triangle\n");
    }
    else printf("Not triangle\n");
    return 0;
}