#include <iostream>
#include <fstream>
#include <sstream>
#include <cstdlib>

using namespace std;

struct darray{
    int * elemek;
    int csize;
    int mostani_elemszam;
};

void alloc_elemek(darray& d, int max_size){

    cout<< "alloc d_array size"<<max_size<<endl;
    d.csize= max_size;
    d.elemek = (int*) malloc (sizeof(int)*d.csize);
    d.mostani_elemszam=0;
}

void realloc_elemek(darray& d, int max_size){
    int * t=(int*) malloc (sizeof(int)*d.csize);
    for (int iloop=0;iloop<d.mostani_elemszam;iloop++){
        t[iloop]=d.elemek[iloop];

    }
    int t_elemek=d.mostani_elemszam;
    alloc_elemek(d,max_size);
    for (int iloop=0;iloop<t_elemek;iloop++){
        d.elemek[iloop]=t[iloop];

    }
}


void append(darray& d, int a ){
    if (d.mostani_elemszam=d.csize){
        realloc_elemek(d,d.mostani_elemszam*2);
    }

    d.elemek[d.mostani_elemszam++]=a;


}



void print_array(darray& d){
    for (int iloop=0;iloop<d.mostani_elemszam;iloop++){
        cout<<d.elemek[iloop]<<endl;

    }
}

int main(){


darray d;

alloc_elemek(d,1);
append(d,2);
append(d,78);
print_array(d);



    ifstream myfile;
    string tartalom1,tartalom2;
    myfile.open("input.txt");
    int szamlalo=0;

    stringstream ss;



    for (;getline(myfile,tartalom1);){
        //cout<<tartalom1<<endl;
            string b1,b2;
        bool szeparator=false;
        for (int iloop=0; iloop<tartalom1.size();iloop++){
                if (szeparator==''){
                        int tmp= 0;
                        ss>>tmp;
                        append(d,tmp);
                    continue;
                }

            }

    }
    /*for (;;szamlalo++){
        myfile>>tartalom1>>tartalom2;
        cout<<tartalom1<<" "<<tartalom2<<endl;
        if(szamlalo>1){
            break;
        }
    }
*/
   /* myfile>>tartalom1>>tartalom2;
    cout<<tartalom1<<" "<<tartalom2<<endl;*/
    //myfile.close();

    cout << "Hello world!" << endl;
    return 0;
}