public static <E> String toBiggestValuesFirstString(Counter<E> c, int k) {
PriorityQueue<E> pq = c.asPriorityQueue();
PriorityQueue<E> largestK = new FastPriorityQueue<E>();
while (largestK.size() < k && pq.hasNext()) {
double firstScore = pq.getPriority();
E first = pq.next();
largestK.setPriority(first, firstScore);
}
return largestK.toString();
}
