C++ code to create a Solitaire game

#include<iostream>
#include<vector>

using namespace std;

// Struct to represent a card
struct Card {
    int value;
    char suit;
};

// Function to print a card
void printCard(Card c) {
    cout << c.value << c.suit << " ";
}

// Function to check if a card can be placed on top of another card
bool canPlace(Card c1, Card c2) {
    return (c1.value == c2.value - 1 && c1.suit == c2.suit);
}

int main()
{
    // Create a vector of vectors to represent the stacks
    vector<vector<Card>> stacks;

    // Create a vector of cards to represent the deck
    vector<Card> deck;

    // Create a card and push it into the deck
    Card c;
    c.value = 1;
    c.suit = 'S';
    deck.push_back(c);

    // Create the remaining cards and push them into the deck
    for (int i = 2; i <= 13; i++) {
        c.value = i;
        c.suit = 'S';
        deck.push_back(c);
        c.suit = 'H';
        deck.push_back(c);
        c.suit = 'D';
        deck.push_back(c);
        c.suit = 'C';
        deck.push_back(c);
    }

    // Shuffle the deck
    random_shuffle(deck.begin(), deck.end());

    // Create 7 stacks and push a card into each stack
    for (int i = 0; i < 7; i++) {
        vector<Card> stack;
        stack.push_back(deck[i]);
        stacks.push_back(stack);
    }

    // Remove the cards from the deck
    deck.erase(deck.begin(), deck.begin() + 7);

    // Game loop
    while (true) {
        // Print the stacks
        for (int i = 0; i < 7; i++) {
            cout << i << ": ";
            for (int j = 0; j < stacks[i].size(); j++) {
                printCard(stacks[i][j]);
            }
            cout << endl;
        }
        // Print the deck
        cout << "D: ";
        for (int i = 0; i < deck.size(); i++) {
            printCard(deck[i]);
        }
        cout << endl;

        // Get input from the user
        int from;
        int to;
        cout << "Move from: ";
        cin >> from;
        cout << "Move to: ";
        cin >> to;

        // Check if the move is valid
        if (from == -1) {
            if (to >= 0 && to <= 6 && canPlace(deck.back(), stacks[to].back())) {
                stacks[to].push_back(deck.back());
                deck.pop_back();
            }
            else {
                cout << "Invalid move!" << endl;
            }
        }
        else {
            if (to == -1 && from >= 0 && from <= 6) {
                deck.push_back(stacks[from].back());
                stacks[from].pop_back();
            }
            else if (from >= 0 && from <= 6 && to >= 0 && to <= 6 && canPlace(stacks[from].back(), stacks[to].back())) {
                stacks[to].push_back(stacks[from].back());
                stacks[from].pop_back();
            }
            else {
                cout << "Invalid move!" << endl;
            }
        }

        // Check if the game is over
        bool gameOver = true;
        for (int i = 0; i < 7; i++) {
            if (stacks[i].size() != 13) {
                gameOver = false;
                break;
            }
        }
        if (gameOver) {
            cout << "You win!" << endl;
            break;
        }
    }

    return 0;
}