packagelhz.algorithm.chapter.six; /** * “构建堆”,《算法导论》6.3章节 Building a heap * 利用之前实现的<code>MaxHeapify</code>算法,构建max-heap。 * 伪代码: * BUILD-MAX-HEAP(A) * 1 heap-size[A] ← length[A] * 2 for i ← ⌊
操作集:publicMaxHeap(intmaxSize):创建一个空的最大堆publicbooleanisFull():判断最大堆是否已满publicbooleanisEmpty():判断最大堆是否为空publicintpeek():查看堆顶元素值publicvoidpush(intvalue):将元素插入最大堆publicintpop():返回最大堆中的最大元素privatevoidheapInsert(int[]arr,intindex):实际插入元...
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java——最大堆 MaxHeap 使用数组来实现最大堆 堆是平衡二叉树 importDate_pacage.Array;publicclassMaxHeap<EextendsComparable <E>>{privateArray<E>data;publicMaxHeap(intcapacity) { data=newArray<>(capacity); }publicMaxHeap() { data=newArray<>(); }//heapify:讲任意数组整理成堆的形状 O(n)publ...
当然也可以直接使用Java自带的动态数组。 初始化程序实现: public MaxHeap() { data = new Array<>(); } public MaxHeap(int capacity) { data = new Array<>(capacity); } 节点索引查询实现: 我们需要对查询父亲节点进行判断,因为index-1操作会导致负值出现。 private int parent(int index) { if (...
System.out.println("max in heap : "+heap.peek()); } } This article tried to discuss Max heap in Java. Hope this blog helps you understand and solve the problem. To practice more problems you can check outMYCODE | Competitive ProgrammingatPrepbytes....
问java中的树(bst，maxHeap)EN让我们用数组表示您的数据。通过使用公式2*i表示节点i的左子节点，使用...
classHeap<T>extendsArrayList<T>{privatefinal Comparator<T>comparator;publicHeap(Comparator<T>comparator...
Max heap is a complete binary tree, wherein the value of a root node at every step is greater than or equal to value at the child node. Below is an implementation of Max Heap using library functions. Example Live Demo import java.util.*; public class Demo{ public static void main(...
3. Implementation in Java Let’s start with a simple class that represents our min-max heap: publicclassMinMaxHeap<TextendsComparable<T>> {privateList<T> array;privateintcapacity;privateintindicator; }Copy As we can see above, we use anindicatorto figure out the last item index added to ...