Viết chương trình bằng C++ Giúp e với ạ

#include <bits/stdc++.h>
using namespace std;
vector<vector<bool>> chessBoard = {
    {1,0,1,0,1,0,1,0},
    {0,1,0,1,0,1,0,1},
    {1,0,1,0,1,0,1,0},
    {0,1,0,1,0,1,0,1},
    {1,0,1,0,1,0,1,0},
    {0,1,0,1,0,1,0,1},
    {1,0,1,0,1,0,1,0},
    {0,1,0,1,0,1,0,1}
};
int main() {
    int x1,y1,x2,y2;
    cin >> x1 >> y1 >> x2 >> y2;
    if (chessBoard[x1 - 1][y1 - 1] ^ chessBoard[x2 - 1][y2 - 1])
        cout << "Khong trung mau";
    else cout << "Trung mau";
    return 0;
}