funkor_nit

#include<iostream>
#include<vector>
#include<thread>
using namespace std;

struct Tacka {
   double x, y;
};

class Krug {
   Tacka centar;
   double r;

public:
   Krug(const Tacka t, const double r_) : centar(t), r(r_) {}

   void operator()(const vector<Tacka> &p, vector<bool>&ret){
   ret.resize(p.size());

    for(int i= 0; i< p.size(); ++i) {
       if((p[i].x -centar.x)*(p[i].x -centar.x)+(p[i].y -centar.y)*(p[i].y -centar.y)<=r*r) ret[i]=true; //push_back(true) je pogresno
          else
            ret[i]=false; //push_back(..)je pogresno jer se na vektor 'ret' formirane dimenzije nadodaje na kraj vektora
        }
    }
};

int main() {

    Krug k({0,0}, 3);
    vector<Tacka> p= {{1,3}, {3,3}, {0,0}, {1,1}, {0,3}};
    vector<bool> b;

    thread t(k, p, ref(b));
    t.join();


   for(auto i=0; i<b.size(); ++i) {
   cout<<"Tacka("<<p[i].x<<","<<p[i].y<<")";
   if(b[i]) cout<<"pripada"<<endl;
    else
    cout<<"ne pripada"<<endl;
   }

return 0;
}