Thread: sort 2D array

I would like to sort a 2D array[3][5] of float in descending order based on the last 'cell' e.g. [0][4], [1][4], . . .

Code:

   . . . 
scorecard[i][j] = ttl_pts;    // load array

for(u = 1; u < FLIGHT; ++u)
  for(v = FLIGHT; u < v; --v)
    if(scorecard[v-1][4] < scorecard[v][4])
       swap(scorecard[v-1], scorecard[v]);    // designate row? swap

void swap (int * p, int * q)
{
	int temp;

	temp = *p;
	*p = *q;
	*q = temp;
}

This method isn't working. Thanks in advance for any help.
Keith