How to shuffle a vector (cards)

[Edward A]

I am trying to write a sub-program that takes a deck of 52 cards and will shuffle it up using this algorithm:

Start with n=51
Repeatedly:
Generate a random integer between 0 and n. Call it i.
Swap card i and card n in the deck.
Decrease n by 1

However the code that I've written,

vector<int> shuffleDeck(vector<int> deckVector)//deckVector is the original deck in order
{
	int temp, n, i, s;
	n = 51;

	for(n = 51; n >=0 ; n--)
	{
                // following code should swap out random values for the highest vector place
		i = randomize(0);// randomize(0) generates random number between 0 and 51
		temp = deckVector[n]; 
		deckVector[n] = i;
		deckVector[i] = temp;
	}
		return deckVector;// this is supposed to be the shuffled deck
}

when I output the new vector, only produces this output(note- it is a random number every time, but it just repeats over and over):

8 8 8 8 8 8 8 8 0 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
8 8 8 8 8 8 8 8 8 8 8 8

or:

22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 0 22 22 22 22
22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22 22

Any help in explaining why this doesn't work would be appreciated, and any pointers toward the general right direction would be nice.

[MiiNiPaa]

Problem solved: http://www.cplusplus.com/forum/beginner/125051/