Max-Heap:increase 例如,我们需要在Min-Heap中去增加某个key的值,只需要在增加之后,不断的向上调整父节点即可,因为如果发生交换,则交换下来的数字一定可以满足子树堆的性质。 时间复杂度为: Θ(logn) 6、Insert 将带插入的key放在最后,不断向上调整即可 7、Heap Sort 1)算法 build heap pop top heapify #...
* 完全二叉树:她不一定是一个满二叉树,但是它缺失部分,一定是在右下侧*/export class DataStruct_BinaryMaxHeap<T>{//从底层实现一个最大堆//我使用数组来存储二叉堆//公式:(0号设置为空的情况)//parent(i) = i/2;//left child (i) = 2*i;//right child (i) = 2*i + 1;//(0号不设置为...
Example of min-heap Example of max-heap Array Implementation A complete binary tree can be uniquely represented by storing itslevel order traversalin an array. We skip the index zero cell of the array for the convenience of implementation. Consider k-th element of the array: its left child i...
functionheapSort(array,compareFn=defaultCompare){letheapSize=array.length;buildMaxHeap(array,compareFn);// step 1while(heapSize>1){swap(array,0,--heapSize);// step 2heapify(array,0,heapSize,compareFn);// step 3}returnarray;}functionbuildMaxHeap(array,compareFn){for(leti=Math.floor(array.len...
public int getMax() { return intArray[0]; } 二叉堆的插入 先看一个二叉堆插入的动画: 我们向现有的二叉堆中插入了一个100。 首先是插入到数组的最后一个元素,因为插入了新的元素100,而100大于它的父节点,所以需要对二叉堆进行节点调整。 这种调整我们叫做shiftUp,主要是将插入的节点和它的父节点做比较,...
heap -> arr[largest] = temp; Max_Heapify(heap, largest); } } 建大根堆: staticvoidBuild_Max_Heap(Heap * heap) { inti; for(i = heap -> size/2; i >=0; i--) Max_Heapify(heap, i); } 排序: voidHeapSort(Heap * heap)
Method/Function:new_max_heap 导入包:binaryheap 每个示例代码都附有代码来源和完整的源代码,希望对您的程序开发有帮助。 示例1 defcheck_heap(self,reverse=False):iterations=1000heap_size=random.randint(10,1000)for_inrange(iterations):test_list=[random.randint(-999999,999999)for_inrange(heap_size)]if...
Only the greatest element in a max heap can be deleted. Of course, we can't delete it while it is still at the root of the heap (unless the heap contains only a single element). Instead, we will remove the rightmost node on the bottom level, because we want to maintain the ...
max item and repeating on the smaller array until everything is sorted. This can be done in-place by first building a heap and then incrementing the start index of the array. Heapsort runs inO(nlogn)O(n \log n)O(nlogn)time. This algorithm is explained in depth in theHeapsortarticle...
namespace Heap; class BinHeap { /** @var int */ protected $capacity; /** @var int */ protected $size; /** @var \SplFixedArray */ protected $elements; const MIN_PQSIZE = 4; const MIN_DATA = null; public function __construct(int $maxElements) { ...