唔 只过了2和6 why（

#include <cstdio>
#include <cmath>
#include <algorithm>
using namespace std;
int main(){
	long long a,b,c,n;
	cin >> a >> b >> c;
	if (a>c && c>=b) swap(b,c);
	if (b>a && a>=c) swap(a,b);
	if (b>c && c>=a) swap(a,c); swap(a,b);
	if (c>a && a>=b) swap(a,c); swap(b,c);
	if (c>b && b>=a) swap(a,c);
	if (b+c>a) n=1;
	if (n==0) cout << "Not triangle"<< endl;
	return 0;
	if (n!=0)
    {if (b*b+c*c==a*a) cout << "Right triangle"<< endl;
	if (b*b+c*c>a*a) cout <<"Acute triangle"<< endl;
	if (b*b+c*c<a*a) cout <<"Obtuse triangle"<<endl;
	if (a==b || a==c || c==b) cout << "Isosceles triangle"<< endl;
	if (a==b && b==c && a==c) cout << "Equilateral triangle"<< endl;
	}
	return 0;
}```