#include <iostream>
#include <cmath>
#include <cstring>
enum Extension{txt, pdf, exe};
using namespace std;
class File{
private:
    char *ime;
    Extension ekstenzija;
    char *sopstvenik;
    int golemina;
public:
    File(){
        ime=NULL;
        sopstvenik=NULL;
        ekstenzija=Extension (0);
        golemina=0;
    }
    File(char *ime, char *sopstvenik, int golemina, Extension ekstenzija){
        this->ekstenzija=ekstenzija;
        this->golemina=golemina;
        this->ime=new char[strlen(ime)+1];
        strcpy(this->ime, ime);
        this->sopstvenik=new char[strlen(sopstvenik)+1];
        strcpy(this->sopstvenik, sopstvenik);
    }
    File(const File &f){
        this->ekstenzija=f.ekstenzija;
        this->golemina=f.golemina;
        this->ime=new char[strlen(f.ime)+1];
        strcpy(this->ime, f.ime);
        this->sopstvenik=new char[strlen(f.sopstvenik)+1];
        strcpy(this->sopstvenik, f.sopstvenik);
    }
    File &operator=(const File &f){
        if(this!=&f) {
            this->ekstenzija = f.ekstenzija;
            this->golemina = f.golemina;
            delete [] ime;
            this->ime = new char[strlen(f.ime) + 1];
            strcpy(this->ime, f.ime);
            delete [] sopstvenik;
            this->sopstvenik = new char[strlen(f.sopstvenik) + 1];
            strcpy(this->sopstvenik, f.sopstvenik);
        }
        return *this;
    }
    ~File(){
        delete ime;
        delete sopstvenik;
    }
     void print(){
        cout<<"File name: "<<ime<<".";
        if(ekstenzija==0) cout<<"pdf"<<endl;
        if(ekstenzija==1) cout<<"txt"<<endl;
        if(ekstenzija==2) cout<<"exe"<<endl;
        cout<<"File owner: "<<sopstvenik<<endl;
        cout<<"File size: "<<golemina<<endl;
    }
    bool equals(const File & that){
        if((!strcmp(that.ime, ime))&&(!strcmp(sopstvenik, that.sopstvenik))&&(that.ekstenzija==ekstenzija)){
            return true;
        }
        else return false;
    }
    bool equalsType(const File & that){
        if((!strcmp(that.ime, ime)) && (that.ekstenzija==ekstenzija)){
            return true;
        }
        else return false;
    }
};
class Folder{
private:
    char *ime;
    int n;
    File *fajlovi;
public:
    Folder(){
        fajlovi=NULL;
        n=0;
    }
    Folder(const char *ime){
        this->ime=new char[strlen(ime)+1];
        strcpy(this->ime, ime);
        fajlovi=NULL;
        n=0;
    }
    Folder(const Folder &f){
        this->ime=new char[strlen(f.ime)+1];
        strcpy(this->ime, f.ime);
        this->n=f.n;
        this->fajlovi=new File[n];
        for(int i=0; i<n; i++){
            fajlovi[i]=f.fajlovi[i];
        }
    }
    Folder &operator=(const Folder &f){
        if(this!=&f) {
            delete [] ime;
            delete [] fajlovi;
            this->ime = new char[strlen(f.ime) + 1];
            strcpy(this->ime, f.ime);
            this->n = f.n;
            this->fajlovi = new File[n];
            for (int i = 0; i < n; i++) {
                fajlovi[i] = f.fajlovi[i];
            }
        }
        return *this;
    }
    ~Folder(){
        delete [] fajlovi;
        delete [] ime;
    }
    void print(){
        cout<<"Folder name: results"<<endl;
        for(int i=0; i<n; i++){
            fajlovi[i].print();
        }
    }
    void remove(const File & file){
        int razlicni=0;
        for(int i=0; i<n; i++){
            if(fajlovi[i].equals(file)==false){
                razlicni++;
            }
        }
        File *tmp=new File[razlicni];
        int j=0;
        for(int i=0; i<n; i++){
            if(fajlovi[i].equals(file)==false){
                tmp[j]=fajlovi[i];
                j++;
            }
        }
        delete [] fajlovi;
        fajlovi=tmp;
        n=razlicni;
    }
    void add(const File & file){
        File *tmp=new File[n+1];
        for(int i=0; i<n; i++){
            tmp[i]=fajlovi[i];
        }
        tmp[n]=file;
        n++;
        delete [] fajlovi;
        fajlovi=tmp;
    }
};
int main() {
	char fileName[20];
	char fileOwner[20];
	int ext;
	int fileSize;

	int testCase;
	cin >> testCase;
	if (testCase == 1) {
		cout << "======= FILE CONSTRUCTORS AND = OPERATOR =======" << endl;
		cin >> fileName;
		cin >> fileOwner;
		cin >> fileSize;
		cin >> ext;

		File created = File(fileName, fileOwner, fileSize, (Extension) ext);
		File copied = File(created);
		File assigned = created;

		cout << "======= CREATED =======" << endl;
		created.print();
		cout << endl;
        cout << "======= COPIED =======" << endl;
		copied.print();
		cout << endl;
        cout << "======= ASSIGNED =======" << endl;
		assigned.print();
	}
	else if (testCase == 2) {
		cout << "======= FILE EQUALS & EQUALS TYPE =======" << endl;
		cin >> fileName;
		cin >> fileOwner;
		cin >> fileSize;
		cin >> ext;

		File first(fileName, fileOwner, fileSize, (Extension) ext);
		first.print();

		cin >> fileName;
		cin >> fileOwner;
		cin >> fileSize;
		cin >> ext;

		File second(fileName, fileOwner, fileSize, (Extension) ext);
		second.print();

		cin >> fileName;
		cin >> fileOwner;
		cin >> fileSize;
		cin >> ext;

		File third(fileName, fileOwner, fileSize, (Extension) ext);
		third.print();

		bool equals = first.equals(second);
		cout << "FIRST EQUALS SECOND: ";
		if (equals)
			cout << "TRUE" << endl;
		else
			cout << "FALSE" << endl;

		equals = first.equals(third);
		cout << "FIRST EQUALS THIRD: ";
		if (equals)
			cout << "TRUE" << endl;
		else
			cout << "FALSE" << endl;

		bool equalsType = first.equalsType(second);
		cout << "FIRST EQUALS TYPE SECOND: ";
		if (equalsType)
			cout << "TRUE" << endl;
		else
			cout << "FALSE" << endl;

		equalsType = second.equals(third);
		cout << "SECOND EQUALS TYPE THIRD: ";
		if (equalsType)
			cout << "TRUE" << endl;
		else
			cout << "FALSE" << endl;

	}
	else if (testCase == 3) {
		cout << "======= FOLDER CONSTRUCTOR =======" << endl;
		cin >> fileName;
		Folder folder(fileName);
		folder.print();

	}
	else if (testCase == 4) {
		cout << "======= ADD FILE IN FOLDER =======" << endl;
		char name[20];
		cin >> name;
		Folder folder(name);

		int iter;
		cin >> iter;

		while (iter > 0) {
			cin >> fileName;
			cin >> fileOwner;
			cin >> fileSize;
			cin >> ext;

			File file(fileName, fileOwner, fileSize, (Extension) ext);
			folder.add(file);
			iter--;
		}
		folder.print();
	}
	else {
		cout << "======= REMOVE FILE FROM FOLDER =======" << endl;
		char name[20];
		cin >> name;
		Folder folder(name);

		int iter;
		cin >> iter;

		while (iter > 0) {
			cin >> fileName;
			cin >> fileOwner;
			cin >> fileSize;
			cin >> ext;

			File file(fileName, fileOwner, fileSize, (Extension) ext);
			folder.add(file);
			iter--;
		}
		cin >> fileName;
		cin >> fileOwner;
		cin >> fileSize;
		cin >> ext;

		File file(fileName, fileOwner, fileSize, (Extension) ext);
		folder.remove(file);
		folder.print();
	}
	return 0;
}