Revise paste NCTU LAB 02/04 NUM 2

#include <iostream>
#include <ctime>
#include <stdlib.h>
using namespace std;

#define SPADE "\xE2\x99\xA0"
#define HEART "\xE2\x99\xA5"
#define DIAMOND "\xE2\x99\xA6"
#define CLUB "\xE2\x99\xA3"

struct Card{
	int color;
	int number;
};

void init(Card *c){
	int idx = 0;
	for(int i=1;i<=13;i++){
		for(int j=0;j<4;j++){
			c[idx].number = i;
			c[idx].color = j;
			idx++;
		}
	}
}

void shuffle(Card *c){
	srand(time(NULL));
	for(int i=0;i<52;i++){
		int randNum = rand()%52;
		Card temp = c[randNum];
		c[randNum] = c[i];
		c[i] = temp; 
	}
}

void deal(Card *c, Card p[][13]){
	int idx = 0;
	for(int i=0;i<4;i++){
		for(int j=0;j<13;j++){
			p[i][j] = c[idx++];
		}
	}
}

void sort(Card p[][13]){
	for(int i=0;i<4;i++){
		for(int j=0;j<12;j++){
			for(int k=0;k<12-j;k++){
				if(p[i][k].number>p[i][k+1].number || p[i][k].number==p[i][k+1].number && p[i][k].color>p[i][k+1].color){
					Card temp = p[i][k];
					p[i][k] = p[i][k+1];
					p[i][k+1] = temp;
				}
			}
		}         
	}
}

void show(Card p[][13]){
	for(int i=0;i<4;i++){
		for(int j=0;j<13;j++){
			if(p[i][j].color==0){
				cout << SPADE;
			}else if(p[i][j].color==1){
				cout << HEART;
			}else if(p[i][j].color==2){
				cout << DIAMOND;
			}else{
				cout << CLUB;
			}
			if(p[i][j].number==1){
				cout << "A  ";
			}else if(p[i][j].number==11){
				cout << "J  ";
			}else if(p[i][j].number==12){
				cout << "Q  ";
			}else if(p[i][j].number==13){
				cout << "K  ";
			}else{
				cout << p[i][j].number << "  ";
			}
		}
		cout << endl;
	}
}

int main(){
	Card c[52], p[4][13];
	srand(time(NULL));
	init(c);
	shuffle(c);
	deal(c, p);
	cout << "Before sorting: " << endl;
	show(p);
	sort(p);
	cout << endl;
	cout << "After sorting: " << endl;
	show(p);
	return 0;
}