Java Finden Sie das kleinste Element mit Prioritätswarteschlangenhaufen
public class MaxHeap {
public static int kthSmallestElement(int k, int [] array){
PriorityQueue<Integer> maxHeap = new PriorityQueue<>(Collections.reverseOrder());
int length = array.length;
for (int i = 0; i < length; i++){
maxHeap.add(array[i]);
if (maxHeap.size() > k){
maxHeap.poll();
}
}
return maxHeap.peek();
}
public static void main(String[] args) {
int [] array = {1, 3, 8, 9, 4, 7, 6};
System.out .println(MaxHeap.kthSmallestElement(3, array));
}
}
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