Angle Of Triangles SLHACK1.0

#include<iostream>
#include<cmath>
using namespace std;

bool invalid(double a, double b, double c){
    if(a+b > c && a+c > b && b+c > a)return false;
    return true;
}

int main(){
    int n;
    cin>>n;
    double ar[n];
    for(int i=0;i<n;i++)cin>>ar[i];

    int ac=0,ri=0,ob=0;
    double a,b,c,h;

    for(int i=0;i<n;i++){
        for(int j=i+1;j<n;j++){
            for(int k=j+1;k<n;k++){
                a=ar[i];
                b=ar[j];
                c=ar[k];
                if(invalid(a,b,c))continue;
                if(ar[i] >= ar[j] && ar[i] >= ar[k]){
                    c=ar[i];
                    a=ar[j];
                    b=ar[k];
                }else if(ar[j] >= ar[i] && ar[j] >= ar[k]){
                    c=ar[j];
                    a=ar[i];
                    b=ar[k];
                }
                h= sqrt(a*a + b*b);
                //cout<<h<<" "<<c<<endl;
                if (h==c)ri++;
                else if(h < c)ob++;
                else ac++;
            }
        }
    }
    cout<<ac<<" "<<ri<<" "<<ob<<endl;
    return 0;
}