Thread: Random Nos

I want to jumble up numbers from 1 to 16 and store them in an array for a game i'm planning. I have tried various approaches but nothing seems to work. This is how i am generating a random no:

srand((unsigned)time(NULL));
int random_no=rand()%16;
random_no++;

Any ideas??

//Here this should do what you are looking for:


#include<iostream>
using std::cout;
using std::endl;

#include<cstdio>
#include<ctime>

const int MAX = 10;

main()
{
int game_numbers[MAX];
srand((unsigned)time(NULL));

for(int i =0; i < MAX; i++)
{
game_numbers[i] = (rand()%16) + 1;
}


for(i = 0; i < MAX; i++)
{
cout << game_numbers[i] << endl;
}

return (0);
}

Code:

#include <iostream>
#include <string>
#include <ctime>

using namespace std;

#define MAX 16
#define SWAPS 50

int main() 
{
	int nums[MAX],i,place1,place2,temp;
         //seed the rand function
	srand(time(NULL));
	//initalize the array with 1..16
	for( i=0 ; i<MAX ; i++)
	{
		nums[i]=i+1;
	}
             // loop for as many swaps that we want to do
	for( i=0 ; i<SWAPS ; i++)
	{
                                 //place1 and place2 are random places in the array 
		place1 = rand() % MAX;
		place2 = rand() % MAX;
                     //save the var at place 1
		temp = nums[place1];
                 //move the var from place2 to place1  
	 	nums[place1] = nums[place2];
                 //move the old place1 to place 2
		nums[place2] = temp;
	}

	for( i=0 ; i<MAX ; i++)
	{
		cout << "i is " << i << ":" << nums[i] << endl;
	}
	return 0;
}

That is a crude yet effective numer mixer-uper
Change SWAPS if your numbers aren't mixed up enough