Store Credit

/*
   Problem:  http://code.google.com/codejam/contest/dashboard?c=351101#s=p0
 */

#include<stdio.h>
#include<stdlib.h>

int main(int argc, char **argv)
{
    int n, c, i, p; //cases, credit, item, price
    int *items = 0;
    int case_no = 1;
    for(scanf("%d",&n); n; n--)
    {
        scanf("%d%d",&c,&i);
        if(items)
            free(items);
        items = (int *)malloc(sizeof(int) * i);
        int a,b; //tmp vats
        for(a = 0; a < i && scanf("%d",&p);a++)
            items[a] = p;
        //process
        int done = 0;
        for(a = 0; a < i && !done; a++)
            for(b = a+1; b < i && !done; b++)
                if(items[a]+items[b] == c)
                {
                    printf("Case #%d: %d %d\n",case_no++,a+1,b+1);
                    done = 1;
                }
    }
  if(items)
      free(items);
}