C++로 지뢰찾기를 만들었는데, 하다가 계속 프로그램이 중지되요 ㅠㅠ

아래는 지뢰찾기에 해당하는 소스코드인데요.
하다가 계속 프로그램이 중단됩니다. ㅠㅠ
예를 들어 seed에 1을 넣고 Choice에 0을 넣으면 프로그램이 중단됩니다 ㅠㅠ
뭐가 문제인가요?

#include
#include
#include
using std::cin;
using std::cout;
using std::endl;
using std::setw;

enum say_Yes_or_No { Yes, No };
enum result_of_Games { Success, Failure, Quit };

void initialize_Grid(char Grid[10][10]);
void get_seedValue(int&);
void dispose_the_Mines(int Cell[10][10]);
say_Yes_or_No Do_this_Number_exist(int randomNumber, int Cell[10][10]);
void locate_Mines(int Cell[10][10]);
void How_many_mines_are_in_Neighborhood(int Cell[10][10]);
void initialize_realCell(char realCell[10][10], int tempCell[10][10]);
void fill_in_the_Grid(char Cell[10][10], char Grid[10][10], int Choice);
void Game_set(char realCell[10][10], int tempCell[10][10], char Grid[10][10]);
result_of_Games Find_out_All_Mines(char realCell[10][10], char Grid[10][10], int Choice);
void How_many_minefree_cells_is_it(char Grid[10][10], int& counting);
say_Yes_or_No Does_the_Grid_Have_Mine(char Grid[10][10]);
int main()
{
//Declare the Cells, Grids and Seed.
int tempCell[10][10] = {0};
char realCell[10][10] = {'\0'};
char Grid[10][10] = {'\0'};
int seed;

get_seedValue(seed);

srand(seed);

Game_set(realCell, tempCell, Grid);

int Choice=0;
Find_out_All_Mines(realCell, Grid, Choice);

return 0;
}

result_of_Games Find_out_All_Mines(char realCell[10][10], char Grid[10][10], int Choice)
{
int how_much=0;
do {
int counting = 0;

How_many_minefree_cells_is_it(Grid, counting);
counting -= 20;

cout << endl
<< "0 1 2 3 4 5 6 7 8 9" << endl;
cout << "--------------------" << endl;
for (int i = 0; i<10; i++)
for (int j = 0; j < 10; j++)
{
cout << Grid[i][j] << setw(2);
if (j == 9)
cout << "|" << setw(2) << i << endl;
}

cout << endl
<< "Choose one of " << counting << " mine-free cells: ";
cin >> Choice;
if (Choice >= 0 && Choice <= 99)
fill_in_the_Grid(realCell, Grid, Choice);
else
{
if (how_much > 0 && Choice == 'Q')
return Quit;
while ((Choice < 0 || Choice > 99)||(Grid[Choice/10][Choice%10] != '#'))
{

if (cin.fail())
{
cin.clear();
cin.ignore(2147483647, '\n');
}
cout << "Choose again(Enter Q if you want to quit.): ";
cin >> Choice;

}

}
how_much++;
fill_in_the_Grid(realCell, Grid, Choice);
if (counting == 0)
{
cout << endl
<< "0 1 2 3 4 5 6 7 8 9" << endl;
cout << "--------------------" << endl;
for (int i = 0; i<10; i++)
for (int j = 0; j < 10; j++)
{
cout << Grid[i][j] << setw(2);
if (j == 9)
cout << "|" << setw(2) << i << endl;
}

cout << endl;
cout << "Congratulations! You cleared the game.";
return Success;
}

if (Does_the_Grid_Have_Mine(Grid) == Yes)
{
cout << endl
<< "0 1 2 3 4 5 6 7 8 9" << endl;
cout << "--------------------" << endl;
for (int i = 0; i<10; i++)
for (int j = 0; j < 10; j++)
{
cout << Grid[i][j] << setw(2);
if (j == 9)
cout << "|" << setw(2) << i << endl;
}

cout << endl;
cout << "BOOM! Game Over." << endl;
return Failure;
}
} while (1);
}

void How_many_minefree_cells_is_it(char Grid[10][10], int& counting)
{
for (int i = 0; i < 10; i++)
for (int j = 0; j < 10; j++)
if (Grid[i][j] == '#')
counting++;
}

say_Yes_or_No Does_the_Grid_Have_Mine(char Grid[10][10])
{
for (int i = 0; i < 10; i++)
for (int j = 0; j < 10; j++)
if (Grid[i][j] == 'B')
return Yes;
return No;
}
//****************Fill all Grid with "#"****************//
void initialize_Grid(char Grid[10][10])
{
for (int i = 0; i < 10; i++)
for (int j = 0; j < 10; j++)
Grid[i][j] = '#';
}
//******************************************************//
void get_seedValue(int& seed)
{
do {
if (cin.fail())
{
cin.clear();
cin.ignore(214748364, '\n');
}
cout << "Please specify the game seed number: ";
cin >> seed;
} while (seed < 0);
}

//****************It's all about initializing Cell.****************//
void dispose_the_Mines(int Cell[10][10])
{
int randomNumber;
int i = 0;
while (i < 20)
{
randomNumber = rand() % 100;
if (Do_this_Number_exist(randomNumber, Cell) == Yes)
continue;
else if (Do_this_Number_exist(randomNumber, Cell) == No)
{
Cell[randomNumber / 10][randomNumber % 10] = randomNumber;
i++;
}
}
}
say_Yes_or_No Do_this_Number_exist(int randomNumber, int Cell[10][10])
{
for (int i = 0; i < 10; i++)
for (int j = 0; j < 10; j++)
if (Cell[i][j] == randomNumber)
return Yes;
return No;
}
void locate_Mines(int Cell[10][10])
{
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
if (Cell[i][j] == 0)
;
else
Cell[i][j] = 66;
}
}
}
void How_many_mines_are_in_Neighborhood(int Cell[10][10])
{
for (int i = 0; i < 10; i++)
{
for (int j = 0; j < 10; j++)
{
if (Cell[i][j] == 66)
;
else
{
if (Cell[i - 1][j - 1] == 66)
Cell[i][j]++;
if (Cell[i - 1][j] == 66)
Cell[i][j]++;
if (Cell[i - 1][j + 1] == 66)
Cell[i][j]++;
if (Cell[i][j - 1] == 66)
Cell[i][j]++;
if (Cell[i][j + 1] == 66)
Cell[i][j]++;
if (Cell[i + 1][j - 1] == 66)
Cell[i][j]++;
if (Cell[i + 1][j] == 66)
Cell[i][j]++;
if (Cell[i + 1][j + 1] == 66)
Cell[i][j]++;
}
}
}
}
void initialize_realCell(char realCell[10][10], int tempCell[10][10])
{
for (int i = 0; i < 10; i++)
for (int j = 0; j < 10; j++)
{
if (tempCell[i][j] == 0)
realCell[i][j] = '.';
else if (tempCell[i][j] == 66)
realCell[i][j] = 'B';
else
realCell[i][j] = (tempCell[i][j] + 48);
}
}
//*****************************************************************//
void fill_in_the_Grid(char Cell[10][10], char Grid[10][10], int Choice)
{
if (Choice >= 0 && Choice <= 99)
switch (Cell[Choice / 10][Choice % 10])
{
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case 'B':
Grid[Choice / 10][Choice % 10] = Cell[Choice / 10][Choice % 10]; break;
case '.':
Grid[Choice / 10][Choice % 10] = Cell[Choice / 10][Choice % 10];
fill_in_the_Grid(Cell, Grid, Choice - 10);
fill_in_the_Grid(Cell, Grid, Choice - 1);
fill_in_the_Grid(Cell, Grid, Choice + 1);
fill_in_the_Grid(Cell, Grid, Choice + 10);
break;
default:
break;
}
else
;

}

void Game_set(char realCell[10][10], int tempCell[10][10], char Grid[10][10])
{
dispose_the_Mines(tempCell);
locate_Mines(tempCell);
How_many_mines_are_in_Neighborhood(tempCell);
initialize_realCell(realCell, tempCell);
initialize_Grid(Grid);
}