deal.c

#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

#define NUM_SUITS 4
#define NUM_RANKS 13

int main(void){
    bool in_hand[NUM_SUITS][NUM_RANKS] = {false};
    int num_cards, rank, suit;
    
    const char rank_code[] = {'2','3','4','5','6','7','8','9','t','j','q','k','a'};
    const char suit_code[] = {'c', 'd', 'h', 's'};

    srand((unsigned) time(NULL));

    printf("Enter number of cards in hand: ");
    scanf("%d", &num_cards);

    printf("Your hand:");
    while(num_cards > 0) {
        suit = rand() % NUM_SUITS; /* Picks a random suit */
        rank= rand() % NUM_RANKS; /* Picks a random rank  */
        if (!in_hand[suit][rank]) {
            in_hand[suit][rank] = true;
            num_cards--;
            printf(" %c%c", rank_code[rank], suit_code[suit]);
        }
    }
    printf("\n");

    return 0;
}