d507. 三角形的判斷

#include 

using namespace std;



int main()

{

    int a,b,c;

    while(cin>>a>>b>>c)

    {

                       int sides[3]={a,b,c};

                       sort(sides,sides+3);

                       a=sides[0];

                       b=sides[1];

                       c=sides[2];

                       if( c*c > (a*a+b*b) )

                           cout<<"obtuse triangle";

                       else if(c*c < (a*a+b*b) )

                            cout<<"acute triangle";

                       else cout<<"right triangle";

                       

    }

    system("pause");

    return 0;

}