Random Number Generator

[bobert89]

Ok, Im helping out my local lan gaming center and i'm trying to make a random number generator to place people onto different stations. There are 12 stations and here is the layout
12
11
10
9
8
7
6
5
4
3
2
1

Each person is already assigned a number and we want the program to spit out in order what station they will be at.
// This program uses the random number generator to show
// a listing of random numbers on the screen
// Written by Janine Bouyssounouse on 10/15/08
#include <iostream>
#include <stdlib.h>
#include <ctime>
#include <time.h>
using namespace std;
void welcome();
int randomNumber();
void displayRandom(int number);
int main(int argc, char *argv[])
{
int x;
int spot1;
int spot2;
int spot3;
int spot4;
int spot5;
int spot6;
int spot7;
int spot8;
int spot9;
int spot10;
int spot11;
int spot12;
time_t seconds;
time(&seconds);
srand((unsigned int) seconds);

spot1=rand()%(12-1+1)+1;
cout<<"number 1 goes to " <<spot1;
cout<<endl;
spot2=rand()%(12-1+1)+1;
cout<<"number 2 goes to " <<spot2;
cout<<endl;

system("PAUSE");
return 0;
}



at the moment thats what i have, it does work to an extent but the numbers repeat and we can't have them repeating. I used to be good at this but i havent written a program in over 3 years and am just starting to try and pick it back up. Any information on how to get all

[Dufresne]

int spot1;
int spot2;
int spot3;
int spot4;
int spot5;
int spot6;
int spot7;
int spot8;
int spot9;
int spot10;
int spot11;
int spot12; 

instead of this,
use this

int spots[12];

as an easy way , you can do it as

#include <algorithm>
..
...
int spots[12];
for( int i = 0 ; i < 12 ; i++)
        spots[i] = i;
random_shuffle( spots , spots+12);

[bobert89]

mmk i couldnt get that to display but this is what i have now

#include <iostream>
#include <stdlib.h>
#include <ctime>
#include <time.h>
#include <algorithm>
using namespace std;
int main(int argc, char *argv[])
{
time_t seconds;
time(&seconds);
srand((unsigned int) seconds);
int i;//spot
int p;//player
int spots[12];
i=0;
p=1;
while(i<12)
{

spots[i]=rand()%(12-1+1)+1 ;
cout<<"player "<<p<<" is at station "<<spots[i];
i=i+1;
p=p+1;
cout<<endl;
}



system("PAUSE");
return EXIT_SUCCESS;
}




Its printing all 12 spots but the numbers repeat. what can i do to stop them from repeating

[bobert89]

I was also thinking maybe it would just be easier to make an array then shuffle that and display it. It doesnt need to say player [p] is at station[i]. It just needs to not repeat and display 12 numbers on the screen at one time.

Whatever the easiest way to do it will be best. Thanks