Write a program that will generate a random poker hand and then display it, plus

Question

Write a program that will generate a random poker hand and then display it, plus determine the lowest rank card (display rank and suit, either one if there is a tie). Every run should be different. Display messages that there is pair, or three, or four, on none (so the tester knows you have this feature).
Some suggestions:
Use two parallel arrays of int of length 5 - one for suit (random 4 values) and one for rank (random 13 values).

const int HANDSIZE=5;
int ranks[HANDSIZE];
int suits[HANDSIZE];
etc.

Another array of size 4 lists the 4 strings for the suits, and another array of size 13 lists the 13 strings for ranks (for display).
You may use global arrays (all four mentioned arrays).
Use a function to initialize the hand (use rand() to generate 5 ranks and 5 suits (all are integers see above). Use a function to display one card by referencing the other arrays, and call this function HANDSIZE times to display all cards.
For the extra, have a function that searches the array of ranks for repetitions.

Example run (should be reproduced):

Random hand generated as
2 Hearts
10 Spades
3 Clubs
Q Hearts
2 Spades

Lowest rank card is 2 Hearts // or 2 Spades
The hand has Pair// extra
..

Explanation / Answer

please rate - thanks

#include <iostream>
#include <ctime>
#include<iomanip>
using namespace std;
const int HANDSIZE=5;
void shuffle(int[],int[]);
void dealcards(int[],int[],int[],int[]);
bool checkflush(int[]);
bool checkstraight(int[]);
void same(int [],bool &,bool &,bool &,bool &,bool &);
int lowest(int[]);
int main()
{
int i,j,flushes,decks[52],deckn[52],low;
int suits[HANDSIZE],ranks[HANDSIZE],scored,count;
bool flush,straight;
bool pair,pair2,three,four,nothing;
string suit[4]={"hearts","diamonds","spades","clubs"};
string card[13]={"ace","2","3","4","5","6","7","8","9","10","jack","queen","king"};
int deal;
srand(time(0));
scored=0;
shuffle(decks,deckn);
dealcards(suits,ranks,decks,deckn);
cout<<"Hand: ";
       for(j=0;j<HANDSIZE;j++)
          cout<<card[ranks[j]]<<" "<<suit[suits[j]]<<endl;
    cout<<endl;
low=lowest(ranks);
cout<<"The lowest card is "<<card[low] <<" ";
for(i=0;i<HANDSIZE;i++)
       if(ranks[i]==low)
             cout<<suit[suits[i]]<<" ";
flush=checkflush(suits);
straight=checkstraight(ranks);
same(ranks,nothing,pair,pair2,three,four);
cout<<" scoring: ";
if(straight&&flush)
     cout<<"straight flush ";
else if(pair&&three)
      cout<<"full house ";  
else if(straight)
     cout<<"straight ";
else if(flush)
     cout<<"flush ";   
else if(four)
     cout<<"four of a kind ";  
else if(three)
     cout<<"Three of a kind ";
else if(pair2)
     cout<<"2 pair ";             
else if(pair)
    cout<<"one pair ";
else
    cout<<"nothing ";     
system("pause");
return 0;
}
int lowest(int card[])
{int i,low=card[0];
for(i=1;i<HANDSIZE;i++)
     if(card[i]<low)
          low=card[i];
return low;
}
bool checkstraight(int ranks[])
{int i,j,t;
for(i=0;i<4;i++)
    for(j=i+1;j<HANDSIZE;j++)
        if(ranks[i]>ranks[j])
            {t=ranks[i];
            ranks[i]=ranks[j];
            ranks[j]=t;
            }
for(i=1;i<5;i++)
    if(ranks[i]!=ranks[i-1]+1)
          return false;
return true;
}
void same(int ranks[],bool &nothing,bool &pair,bool &pair2,bool &three,bool &four)
{bool used[13]={false};
nothing=false;
pair=false;
pair2=false;
three=false;
four=false;
int b[13]={0};
int i,j;
for( i = 0; i < HANDSIZE; i++)
{if(!used[ranks[i]])
   {int count = 1;
   for(int j = i+1; j <HANDSIZE; j++)
      {
      if(ranks[j] == ranks[i])
           {
            count++;

            }
         }
     used[ranks[i]]=true;
     b[ranks[i]]=count;
    }

}


cout<<endl;
for(i=0;i<13;i++)
   if(b[i]==4)
      {four=true;
       return;
       }
    else if(b[i]==3)
       {three=true;
        for(j=0;j<13;j++)
             if(b[j]==2)
                 pair=true;
         return;       
       }
     else if(b[i]==2)
         {pair=true;
         for(j=0;j<13;j++)
             if(b[j]==3)
                 three=true;
          for(j=i+1;j<13;j++)
             if(b[j]==2)
                {pair2=true;
                return;
                }
          return;
          }
nothing=true;
return;   
}
void dealcards(int suits[],int ranks[],int decks[],int deckn[])
{int i,j,cards=0;
for(i=0;i<5;i++)
       {suits[i]=decks[cards];
        ranks[i]=deckn[cards];       
        cards++;
        }
return;
}
     
bool checkflush(int suits[])
{int j,count=0,type,handcount;
type=suits[0];
handcount=1;
for(j=1;j<HANDSIZE;j++)
if(suits[j]==type)
       handcount++;
if(handcount==HANDSIZE)
        return true;
else
        return false;
}  
     
void shuffle(int decks[],int deckn[])   
{bool cards[4][13];
int i,j,num,type;
for(i=0;i<4;i++)
   for(j=0;j<13;j++)
      cards[i][j]=false;

    for(j=0;j<52;j++)
        {do
           {
            num=rand()%13;
            type=rand()%4;
            }while(cards[type][num]);
         decks[j]=type;
         deckn[j]=num;
         cards[type][num]=true;
         }

return;
}

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