求助！！！

#include<iostream>
using namespace std;
int main()
{
	int a,b,c;
	cin>>a>>b>>c;
	if(a+b<=c||b+c<=a||a+c<=b)
	{
		cout<<"Not triangle"<<endl;
	}
	else
	{
	if((a*a)+(b*b)==c*c||(a*a)+(c*c)==b*b||(b*b)+(c*c)==a*a)
	{
		cout<<"Right triangle"<<endl;
	}
	if(a*a+b*b>c*c&&a*a+c*c>b*b&&b*b+c*a*a)
	{
		cout<<"Acute triangle"<<endl;
	}
	if(a*a+b*b<c*c||a*a+c*c<b*b||b*b+c*c<a*a)
	{
		cout<<"Obtuse triangle"<<endl;
	}
	if(a==b||a==c||c==b)
	{
		cout<<"Isosceles triangle"<<endl;
	}
	if(a==b&&a==c&&c==b)
	{
		cout<<"Equilateral triangle"<<endl;
	}
	return 0;
}
 }