Gomoku in C++

[User 14965004]

Hi . Recently i've got to make a game called gomoku between two players . Now i need to edit it and change it from PVP to versus computer . I understand that in order of getting a random number from computer i can use and rand() , and the letter by something like this :

char letters[] = "abcdefghijklmnopqrstuvwxyz";
char x = letters[rand() % 26];

Now my question is how i can add it in my program , i tried to put them in but it still is not generating a move from computer . Here's my code,maybe u have some ideas

#include
#include
using namespace std;

void print_table(int x[][15]) {
system("cls");
for (int i = 0; i < 15; i++) {//the loop that use to print out the english character row
if (i == 0)
cout << setw(4) << "A";
else if (i == 1)
cout << " B";
else if (i == 2)
cout << " C";
else if (i == 3)
cout << " D";
else if (i == 4)
cout << " E";
else if (i == 5)
cout << " F";
else if (i == 6)
cout << " G";
else if (i == 7)
cout << " H";
else if (i == 8)
cout << " I";
else if (i == 9)
cout << " J";
else if (i == 10)
cout << " K";
else if (i == 11)
cout << " L";
else if (i == 12)
cout << " M";
else if (i == 13)
cout << " N";
else if (i == 14)
cout << " O";
else if (i == 15)
cout << " P";
}
cout << endl;
for (int i = 0; i < 15; i++) {
cout << setw(2) << i;//print out the row number
for (int j = 0; j < 15; j++) {//print out the board game.
if (x[i][j] == 0) {//the inital value is 0, so when the block is 0 then print out the '.'
cout << " .";
}
else if (x[i][j] == 1) {//when the player O input the block then the value will adding one then if check the block is one then output the 'o'
cout << " O";
}
else if (x[i][j] == 2) {//when the player X input the block then the value will adding two then if check the block is two then output the 'x'
cout << " X";
}
}
cout << endl;
}
}
int check_player(int p) {
if (p == 1) {//change the player everytime before the next loop compile
p++;
}
else {
p--;
}
return p;
}
void input_value(int &t, int &n, int p, int x[][15]) {
char eng;
int number;
do {//the loop that ask for the user input the location.
cout << "player ";
if (p == 1) {
cout << "O";
}
else {
cout << "X";
}
cout << ", make a move: ";
cin >> eng;//input the location
cin >> number;
if (eng == 'A')//

[Greg Utas]

You need to learn how to use a debugger to find your problem. It will allow you to step through your code, one line at a time, to find out where it's doing something unexpected. I will point out, however, that you can map a char to a range that starts at 0 like this:

t = eng - 'A';

'A' through 'Z' have contiguous values, so this maps eng to 0 to 25, assuming that it was an uppercase letter. You can check for invalid input with

if((t < 0) || (t > 14))... // or t > ('O' - 'A')

Similarly, you can write

cout << ' ' << i + 'A';

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