Untitled

#include <iostream>
#include <limits>
using namespace std;

const int MAX_SIZE = 100;
char field[MAX_SIZE][MAX_SIZE];
int player1Score = 0, player2Score = 0;

void createField(int fieldSize) {
    for (int i = 0; i < fieldSize; i++) {
        for (int j = 0; j < fieldSize; j++) {
            field[i][j] = '-';
        }
    }
}

void printField(int fieldSize) {
    for (int i = 0; i < fieldSize; i++) {
        for (int j = 0; j < fieldSize; j++) {
            cout << field[i][j] << " ";
        }
        cout << endl;
    }
}

bool checkWin(char player, int fieldSize) {
    int requiredSymbols = 3;
    if (fieldSize >= 5) {
        requiredSymbols = 5;
    }
    else if (fieldSize == 4) {
        requiredSymbols = 4;
    }

    for (int i = 0; i < fieldSize; i++) {
        int symbolCount = 0;
        for (int j = 0; j < fieldSize; j++) {
            if (field[i][j] == player) {
                symbolCount++;
                if (symbolCount == requiredSymbols) {
                    return true;
                }
            }
            else {
                symbolCount = 0;
            }
        }
    }

    for (int j = 0; j < fieldSize; j++) {
        int symbolCount = 0;
        for (int i = 0; i < fieldSize; i++) {
            if (field[i][j] == player) {
                symbolCount++;
                if (symbolCount == requiredSymbols) {
                    return true;
                }
            }
            else {
                symbolCount = 0;
            }
        }
    }

    for (int i = 0; i <= fieldSize - requiredSymbols; i++) {
        for (int j = 0; j <= fieldSize - requiredSymbols; j++) {
            int symbolCount = 0;
            for (int k = 0; k < requiredSymbols; k++) {
                if (field[i + k][j + k] == player) {
                    symbolCount++;
                    if (symbolCount == requiredSymbols) {
                        return true;
                    }
                }
                else {
                    symbolCount = 0;
                }
            }
        }
    }

    for (int i = 0; i <= fieldSize - requiredSymbols; i++) {
        for (int j = requiredSymbols - 1; j < fieldSize; j++) {
            int symbolCount = 0;
            for (int k = 0; k < requiredSymbols; k++) {
                if (field[i + k][j - k] == player) {
                    symbolCount++;
                    if (symbolCount == requiredSymbols) {
                        return true;
                    }
                }
                else {
                    symbolCount = 0;
                }
            }
        }
    }

    return false;
}

void makeComputerMove(char player, int fieldSize) {
    int row, col;
    cout << "Computer's move: ";
    for (int i = 0; i < fieldSize; i++) {
        for (int j = 0; j < fieldSize; j++) {
            if (field[i][j] == '-') {
                field[i][j] = player;
                if (checkWin(player, fieldSize)) {
                    row = i;
                    col = j;
                    field[i][j] = '-';
                    goto found_move;
                }
                field[i][j] = '-';
            }
        }
    }

    row = rand() % fieldSize;
    col = rand() % fieldSize;
    while (field[row][col] != '-') {
        row = rand() % fieldSize;
        col = rand() % fieldSize;
    }

    found_move:
    field[row][col] = player;
    cout << row+1 << " " << col+1 << endl;
}

void makePlayerMove(char player, int fieldSize) {
    int row, col;
    cout << "Player " << player << ", enter row and column to make a move: ";
    while (!(cin >> row >> col) || cin.get() != '\n' || row < 1 || row > fieldSize || col < 1 || col > fieldSize || field[row - 1][col - 1] != '-') {
        cin.clear();
        cin.ignore(numeric_limits<streamsize>::max(), '\n');
        cout << "Invalid input. Enter row and column again: ";
    }

    field[row - 1][col - 1] = player;
}

void addResult(char winner, string player1Name) {
    if (winner == 'X') {
        player1Score++;
        cout << "Player " << player1Name << " wins!" << endl;
    }
    else if (winner == 'O') {
        player2Score++;
        cout << "Computer wins!" << endl;
    }
    else {
        cout << "No one wins!" << endl;
    }
}

void printResult(string player1Name) {
    cout << "Score: " << player1Name << " - " << player1Score << ", Computer - " << player2Score << endl;
}

int main() {
    int fieldSize;
    cout << "Enter the field size (more than 2): ";
    while (!(cin >> fieldSize) || cin.get() != '\n' || fieldSize < 3) {
        cin.clear();
        cin.ignore(numeric_limits<streamsize> ::max(), '\n');
        cout << "Invalid input. Enter the field size again: ";
    }

    createField(fieldSize);
    printField(fieldSize);

    string player1Name;
    cout << "Player 1, enter your name: ";
    cin >> player1Name;

    char currentPlayer = 'X';
    while (true) {
        if (currentPlayer == 'O') {
            makeComputerMove(currentPlayer, fieldSize);
        }
        else {
            makePlayerMove(currentPlayer, fieldSize);
        }

        printField(fieldSize);

        if (checkWin(currentPlayer, fieldSize)) {
            addResult(currentPlayer, player1Name);
            printResult(player1Name);

            char answer;
            do {
                cout << "Do you want to continue? (y/n): ";
                cin >> answer;
            } while (answer != 'y' && answer != 'n');

            if (answer == 'y') {
                createField(fieldSize);
                printField(fieldSize);

                continue;
            }
            else {
                cout << "Final score: " << player1Name << " - " << player1Score << ", Computer - " << player2Score << endl;
                break;
            }
        }

        if (currentPlayer == 'X') {
            currentPlayer = 'O';
        }
        else {
            currentPlayer = 'X';
        }

        // Check for no possible moves left
        bool possibleMovesLeft = false;
        for (int i = 0; i < fieldSize; i++) {
            for (int j = 0; j < fieldSize; j++) {
                if (field[i][j] == '-') {
                    possibleMovesLeft = true;
                    break;
                }
            }
            if (possibleMovesLeft) {
                break;
            }
        }

        if (!possibleMovesLeft) {
            addResult(' ', player1Name);
            printResult(player1Name);

            char answer;
            do {
                cout << "Do you want to continue? (y/n): ";
                cin >> answer;
            } while (answer != 'y' && answer != 'n');

            if (answer == 'y') {
                createField(fieldSize);
                printField(fieldSize);

                continue;
            }
            else {
                cout << "Final score: " << player1Name << " - " << player1Score << ", Computer - " << player2Score << endl;
                break;
            }
        }
    }

    return 0;
}