I need n numbers of random cards [closed]

here is a code that I found online. I want to modify it such way that in void Deck::shuffle instead of shuffling all the cards, it will randomly choose n numbers of cards and print them. I am having trouble at generating random card names as they are part of 2 strings.

#include <iostream>
#include <vector>
#include <algorithm>

//A card consists of an a number and a suit
class Card {
    public :
        std::string suit;
        std::string number;
        Card();
        Card(std::string s, std::string num);

};

Card::Card() {

}

Card::Card(const std::string s,const std::string num) : suit(s),number(num){
}


//This class will hold all 52 card
class Deck : public Card{
    std::vector<Card> *deckOfCards;
    const std::string SUITS[4] = {"CLUBS","DIMOND","HEARTS","SPADES"};
    const std::string TYPE[13] = {"ACE","2","3","4","5","6","7","8","9","10","JOKER","QUEEN","KING"};
    public:
    Deck();
    void show();
    void shuffle();
    ~Deck();
};

//Constructor will produce a new deck of cards and arrange them in sequence
Deck::Deck() {
    deckOfCards = new std::vector<Card>();
    deckOfCards->reserve(52);
    for(int i = 0 ; i < 4 ; ++i)
        for(int j = 0 ; j < 13 ; ++j)
            deckOfCards->emplace_back(Card(SUITS[i],TYPE[j]));
}

//This memeber function will show the card 
void Deck::show() {
    std::string showCard("");
    auto it = deckOfCards->begin();
    while (it != deckOfCards->end()) {
        showCard.append((it->suit));
        showCard.append(" of ");
        showCard.append((it->number));
        showCard.append("\n");
        it = std::next(it);
    }
    std::cout << showCard <<std::endl;

}

//This member function will shuffle the cards
void Deck::shuffle() {
    srand(time(NULL));
    std::random_shuffle(deckOfCards->begin(),deckOfCards->end());
}