V1 Z10 C++

// Minesweeper.h
using namespace std;
class Minesweeper {
private:
    int n;
    int m;
    bool** a;
public:
    Minesweeper();
    Minesweeper(int n, int m);
    ~Minesweeper();
    int brVrsta() {
        return n;
    }
    int brKolona() {
        return m;
    }
    void ucitajMinesweeper();
    void ispisiMinesweeper();
    int opasnostPolja(int brV, int brK);
};

// Minesweeper.cpp
#include "Minesweeper.h"
#include <iostream>
using namespace std;
Minesweeper::Minesweeper(int n, int m) {
    this->n = n;
    this->m = m;
    a = new bool*[n];
    for (int i = 0; i < n; i++) {
        a[i] = new bool[m];
    }
}
Minesweeper::Minesweeper() {
    a = nullptr;
    this->n = n;
    this->m = m;
}
Minesweeper::~Minesweeper() {
    if (a) {
        for (int i = 0; i < n; i++) {
            delete [] a[i];
        }
        delete [] a;
    }
}
int Minesweeper::opasnostPolja(int x, int y) {      //Smatra se da korisnik unosi matricu tako da je prvo polje (1,1)
    int i,j,br = 0;
    if (a[x - 1][y - 1] == true) {
        return -1;
    }
    else {
        for (i = 0; i < 3; i++) {
            for (j = 0; j < 3; j++) {
                if (x - i >= 0 && x - i < n && y - j >= 0 && y - j < m) {
                    if (a[x - i][y - j] == true) {
                        br++;
                    }
                }
            }
        }
    }
    return br;
}
void Minesweeper::ucitajMinesweeper() {
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> a[i][j];
        }
    }
}
void Minesweeper::ispisiMinesweeper() {
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cout << a[i][j];
        }
        cout << endl;
    }
}

// main.cpp
#include "Minesweeper.h"
#include <iostream>
using namespace std;
void main() {
    Minesweeper mine(4,4);
    int x, y;
    mine.ucitajMinesweeper();
    cin >> x >> y;
    if (mine.opasnostPolja(x,y) < 0) {
        mine.ispisiMinesweeper();
    }
    else {
        cout << mine.opasnostPolja(x,y);
    }
}