Thread: C language help!cards drawing

I am trying to make this program where the user input the number of cards they wanna draw and the computer displays the suit and the card. I have used random number, a switch statement for the special case of Ace, Queen, King and Jack, and a for() loop for the number of cards desired. i have also used a check that the input is not anything other than 0-52. the problem that I have is the repetition of cards, and i want to know if there is a way to draw from only the leftover cards. please help ASAP. Thank you!

Code:

#include<stdio.h>
#include<conio.h>
#include<math.h>
int cardcheck(int x);
card(int y, int z);
main(){
    int a,b,c,d,e,f,g,h[52],i;    
    printf("Say how many cards do you wanna draw?    ");
    scanf("%d",&c);
    cardcheck(c);
    srand(time(NULL));
    for(d=0;d<c;d++){
        a= 3+(rand()%4);
        b= 1+(rand()%13);            
        card(a,b);    
        }


}
cardcheck(int x){
    if(x>=0 && x<=52)
    printf(" \b");
    
    else{
    printf("Invalid input");
    exit(0);
    }
}


card(int y,int z){
    switch (z){
    
            case(1):
                printf("The card you drew is a A of %c\n",y);
                break;
        
            case(11):
                printf("The card you drew is a Jack of %c\n",y);
                break;
        
            case(12):
                printf("The card you drew is a Queen of %c\n",y);
                break;
        
            case(13):
                printf("The card you drew is a King of %c\n",y);
                break;
        
            default:
                printf("The card you drew is a %d of %c\n",z,y);
                break;        
            }


}

I'll give you a way to approach this problem (just the first thing that popped into my head, I'm sure there are many better ways).

Have a structure that represents a "card". The struct can have an attribute that represents a Spade , Diamond, Club, Heart and a number (signifying) Ace-King, along with some sort of boolean flag (this will indicate if it has been chosen yet).

Then when the card is "chosen" you can set the flag to equal true, meaning it cannot be drawn again.

Let me know if this helps.