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

char * Rank (int c);
char * Suit (int c);
int Initialize (int *D, int len, int i);
int PrintDeck (int *D, int len, int i);
int Shuffle (int *D,int len, int i);
int main (int argc, char **argv);

int main (int argc, char **argv) {

  int *D;

 return (srand(time(NULL)),D=malloc(52*sizeof(int)),Initialize (D,52,0),Shuffle(D,52,0),PrintDeck(D,52,0),free (D));
}
/*
This program is going to shuffle a deck of cards.
Imagine a card as an integer between 0 and 51.
*/

int Initialize (int *D, int len, int i) {

 /*
D is an array of int.  len is length of array.  i is the position
we're initializing now.
*/

 return (len==i?0:(D[i]=i,Initialize(D,len,i+1)));
}

int PrintDeck (int *D, int len, int i) {
/*
D is the deck, len is the size, i is the one I'm printing.
*/

 return (len==i?0:(printf ("%s OF %s\n",Rank(D[i]),Suit(D[i])),PrintDeck (D,len,i+1)));
}

char * Rank (int c) {
/*
Gets a card number and returns the rank of the card (TWO through ACE)
*/

  int r;

 return (r=c%13,r==0?"TWO":r==1?"THREE":r==2?"FOUR":r==3?"FIVE":r==4?"SIX":r==5?"SEVEN":r==6?"EIGHT":r==7?"NINE":r==8?"TEN":r==9?"JACK":r==10?"QUEEN":r==11?"KING":"ACE");
}

char * Suit (int c) {
/*
Returns the suit of the card
*/

  int s;

 return (s=c/13,s==0?"CLUBS":s==1?"DIAMONDS":s==2?"HEARTS":"SPADES");
}

int Shuffle (int *D,int len, int i) {
/*D is the deck, len is the length, is the card we're moving*/

  int r, t;
/* rand() returns a random nonnegative int */
 return (len==i?0:(r=rand()%(i+1),t=D[r],D[r]=D[i],D[i]=t,Shuffle(D,len,i+1)));
}