[G]: Memorizing a Deck of Cards

It's been a damn long time since I've made a post on Teamliquid. After I stopped playing Broodwar, it seemed silly to keep posting here. Regardless, I've frequented this website for almost 3 years now, and I think it's time I did my best to give you all something you'll love, (at least I hope).

#include <iostream>
#include <algorithm>
#include <cassert>
#include <functional>
#include <ctime>
using namespace std;
int a[52];
int cardnum;
void carddisplay(void);
void cardrecite(void);
int main()
{
cout<<"How many cards would you like to recite? (Maximum 52).\n";
bool cont;
do
{
cin>>cardnum;
if (cardnum>52)
{
cout<<"Try again\n";
cont = false;
}
else
cont = true;
}
while (cont==false);
srand(time(0));

int i;
for (i = 0; i < 52; ++i)
a[i] = i;
random_shuffle(&a[0], &a[52]);
carddisplay();
cout<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl<<endl;
cout<<"NOTE: To rectify me writing another 100 lines of code, the cards must be re \nentered into the program in numerical form.\n";
cout<<"Assuming Aces are equal to 1, the values follow the format: \nHearts {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}";
cout<<"\nDaimonds {14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26}";
cout<<"\nSpades {27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39}";
cout<<"\nClubs {40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52}"<<endl;
cout<<"You will have to guess the correct card before you may proceed.\n";
cardrecite();
cout<<"Congradulations, you have recited the whole deck. gg.\n";
int ppause;
cin>>ppause;
return 0;
}

void carddisplay(void)
{
int x;
int d = cardnum;
for (x=0;x<d;x++)

{
cout<<"The card is "<<endl;
if (a[x]==1)
cout<<"1H\n";
else if (a[x]==2)
cout<<"2H\n";
else if (a[x]==3)
cout<<"3H\n";
else if (a[x]==4)
cout<<"4H\n";
else if (a[x]==5)
cout<<"5H\n";
else if (a[x]==6)
cout<<"6H\n";
else if (a[x]==7)
cout<<"7H\n";
else if (a[x]==8)
cout<<"8H\n";
else if (a[x]==9)
cout<<"9H\n";
else if (a[x]==10)
cout<<"10H\n";
else if (a[x]==11)
cout<<"JH\n";
else if (a[x]==12)
cout<<"QH\n";
else if (a[x]==13)
cout<<"KH\n";
else if (a[x]==14)
cout<<"1D\n";
else if (a[x]==15)
cout<<"2D\n";
else if (a[x]==16)
cout<<"3D\n";
else if (a[x]==17)
cout<<"4D\n";
else if (a[x]==18)
cout<<"5D\n";
else if (a[x]==19)
cout<<"6D\n";
else if (a[x]==20)
cout<<"7D\n";
else if (a[x]==21)
cout<<"8D\n";
else if (a[x]==22)
cout<<"9D\n";
else if (a[x]==23)
cout<<"10D\n";
else if (a[x]==24)
cout<<"JD\n";
else if (a[x]==25)
cout<<"QD\n";
else if (a[x]==26)
cout<<"KD\n";
else if (a[x]==27)
cout<<"1S\n";
else if (a[x]==28)
cout<<"2S\n";
else if (a[x]==29)
cout<<"3S\n";
else if (a[x]==30)
cout<<"4S\n";
else if (a[x]==31)
cout<<"5S\n";
else if (a[x]==32)
cout<<"6S\n";
else if (a[x]==33)
cout<<"7S\n";
else if (a[x]==34)
cout<<"8S\n";
else if (a[x]==35)
cout<<"9S\n";
else if (a[x]==36)
cout<<"10S\n";
else if (a[x]==37)
cout<<"JS\n";
else if (a[x]==38)
cout<<"QS\n";
else if (a[x]==39)
cout<<"KS\n";
else if (a[x]==40)
cout<<"1C\n";
else if (a[x]==41)
cout<<"2C\n";
else if (a[x]==42)
cout<<"3C\n";
else if (a[x]==43)
cout<<"4C\n";
else if (a[x]==44)
cout<<"5C\n";
else if (a[x]==45)
cout<<"6C\n";
else if (a[x]==46)
cout<<"7C\n";
else if (a[x]==47)
cout<<"8C\n";
else if (a[x]==48)
cout<<"9C\n";
else if (a[x]==49)
cout<<"10C\n";
else if (a[x]==50)
cout<<"JC\n";
else if (a[x]==51)
cout<<"QC\n";
else if (a[x]==52)
cout<<"KC\n";
system("PAUSE");
}
return ;
}
void cardrecite(void)
{
bool correct;
int b;
int c;
int f = cardnum;
for (b=0;b<f;b++)
{
do
{
cout<<"What is card #"<<(b+1)<<"?\n";
cin>>c;
if (c==a[b])
correct=true;
else
correct=false;
}
while (correct==false);
}
return ;
}