#include <iostream> using namespace std; int main(){ int n; int a,b,c; cin>>n; //测试三角形个数 for(int i=1;i<=n;i++) { cin>>a>>b>>c; //直角三角形 good if(a*a+b*b== c*c || c*c+b*b== a*a ||a*a+c*c== b*b ) cout<< "good"<<endl; else if( a==b || b==c || c==a)//等腰三角形 perfect cout<< "perfect\n" ; else //其他 just a triangle cout<<"just a triangle\n"; } return 0; } /* Input 4 3 4 5 2 2 3 1 4 4 4 6 3 Output good perfect perfect just a triangle */