Code Forums - View Single Post - Deck full of cards but no randomization...

QUantumAnenome · 05-12-2005, 10:29 AM

To randomize an array:

Code:

for (i=0; i<ARRAY_SIZE-1; i++)
{
     j = i + rand()%(ARRAY_SIZE-i);
     if (i != j)
          swap (array[i], array[j]);
}

The idea is this:

The first element gets a random card.
The second element gets a random card from the remaining 51
...
The last guy gets the last leftover card.

05-12-2005, 10:29 AM	#6 (permalink)
QUantumAnenome Code Monkey Join Date: Mar 2005 Posts: 56	To randomize an array: Code: for (i=0; i<ARRAY_SIZE-1; i++) { j = i + rand()%(ARRAY_SIZE-i); if (i != j) swap (array[i], array[j]); } The idea is this: The first element gets a random card. The second element gets a random card from the remaining 51 ... The last guy gets the last leftover card. Last edited by redhead; 05-12-2005 at 12:32 PM. Reason: Deleted the unfinished post