Sudoku

#pragma once
#include <iostream>
#include <stdio.h>
#include <fstream>
#include <string>
#include "node.h"
#include "Sudoku.h"

using namespace std;

class node
{
public:
    node();
    ~node();

private:
    int x;
    int y;
    node* prev;
    char* val;
    char arrint[9];
    node* next;

    friend class Sudoku;

};


class Sudoku
{
public:
    Sudoku();
    ~Sudoku();
    node* head; node* tail;
    void read_File(char TowD[9][9]);
    void search(int x, int y, char TowD[9][9], char arr[9]);
    void Store(int i, int j, char TowD[9][9], char chance[9]);
    void solve(char towd[9][9]);
    void addNode(char towd[9][9], int i, int j, char chance[9]);
    void backTrack(char towd[9][9], int i, int j);

};