and right sub-nodes are labeled 2*i+1 and 2*i+2.The 0 location will not be used in this article.3. Downward adjustmentThe downward adjustment is to maintain the nature of the heap. Its input is the array a and subscript I. It first looks at whether the node is larger than the value of its left and right child nodes, and if not, the larger values in the left and right child nodes are exchanged. The next level of h
Select Class Sort: 1: Simple select sort O (n^2), Space O (1) 2: Heap sort O (n times log to 2 for base, n logarithm), Spatial complexity O (1)//select sort void selectsort (int r[],int n) {int i,j,k; int Tmp;for (i=0;i
adjusted -}Else{ the Break;///Adjustment Complete * } $}/// forPanax NotoginsengA[i] = temp;///Place the initially adjusted node in the correct position -}To comb the process of building a heap on one side:Building the heap is also the process of constantly changing the heap shift, and the shift (int a[],int i,int m) function does th
that, the subtree of each node is then filtered forward, making it a heap until the root node.2. After removing the root node, rebuild the heapSwap the last one with the root node. In the way of building the heap (only the first number is to be built to sort the heap), the number of the first n-1 is built.#include /*1
Classic sorting algorithm-heap sort heap sortsThe heap sort is a little complex, divided into three pieces.The first block, what is the heap, what is the maximum heapThe second block, how to adjust the
This article illustrates the heap ordering of the summary of Java sorting algorithms. Share to everyone for your reference. The specific analysis is as follows:
1991 Computer Pioneer Laureate, Stanford University computer science professor Robert Floyd (Robert W.). Floyd) and Williams (J. Williams) jointly invented the famous heap sorting algorithm (Heap
Text descriptionIn the heap sort, the data to be sorted can also be represented by a complete binary tree, and the values of all non-terminal nodes of the complete binary tree are not greater than (or less than) the values of their left and right child nodes. Thus, if the sequence {k1, K2, ..., kn} is a heap, then the top element of the
reference value Exchange*/Array[low]=Array[i]; Array[i]=Base; /*Continue to do the same for two sub-sequences*/ if(Low 1) Quick_sort (array, low, I-1); if(i +1High ) Quick_sort (array, I+1, high); return;}3. Merge sortThe core idea of merge sorting is to combine two sorted sub-sequences into a sequence with a time complexity of O (N). How do you get ordered sub-sequences? The entire sequence is divided by two until each element is a subsequence. T
, let's take a look at this article. Other algorithms that perform more efficiently, such as merge sorting, such as fast sorting, heap sorting, and so on.1. Merge sort Let's take a look at what the merge sort is and how the merge sort is implemented.Merge sort belongs to a
The heap sort is a little complex, divided into three pieces.The first block, what is the heap, what is the maximum heapThe second block, how to adjust the heap to the maximum heap, this part is the focusThird piece, heap
root node.Like such a group of numbers a[]={16,7,3,20,17,8}, we build heapsAnd then, in turn, adjustSuch a heap was built up. The rest of it is easy.After the heap we can easily find that the heap has a very good nature, that is, the root node value of the lock all the values are large (small), then we first select the root node, put the array "n-i+1", and then
Classic sorting algorithm-heap sorting Heap Sort
Heap sorting is a little complicated and divided into three parts.
First, what is heap and what is the largest heap
The second part focuses on how to adjust the
Heap sorting is a sort of in-place sorting algorithm that does not use extra array space and runs at O (NLGN). In this article, we will introduce the implementation of heap sequencing.To understand heap sequencing, let's begin by understanding a concept, a completely binary tree. A
3. Compare and sort the heap and heap
Full Binary Tree Knowledge is involved in heap sorting. For the {10, 2, 11, 8, 7} columns to be sorted, it is regarded as a Complete Binary Tree, as shown in.
A heap is divided into a large root he
1#include 2 3 /*Run this program using the console Pauser or add your own getch, System ("pause") or input loop*/4 //Karllen5 //46 7 voidQuickSort (int*a,intLowintHigh);//Quick Sort8 voidHeapsort (int*a,intn);//Heap Sort9 voidEleswap (inta,intAMP;B);//Exchanging DataTen intLeftindex (intindex);//returns the subscript of the left child node One intRightindex (intindex);//returns the subscript of the right child node A voidMakeheapmax (int*a,intlength);
[Unity] [Heap sort] the process of dynamically demonstrating heap sequencing with unityHow Heap Sort WorksRecently, a program that uses Unity3d to dynamically demonstrate the heap sequencing process has been done.I ' ve made this
of the loop} A[i]= temp;//inserts the value of the saved parent node into the appropriate location}When the initial heap is established, it needs to be adjusted from the last non-leaf node to the back-forward until the entire sequence satisfies the nature of the heap. At this point, the root node is the largest element, and the root node is the last leaf node.Swapping locations, leaving the largest element
A simple choice of sorting1, thought: Each time the traversal remembers the current smallest (large) elements of the position, and finally only need a single exchange operation can be placed in the appropriate location. Compared with bubble sort, the number of mobile data is few, save time, performance is better than bubble sort.2. Complexity of Time:Best: O (N2)
Heap Sort is common in written exams.
First of all, what is heap? Heap is a kind of data struct that can be seen as a Complete Binary Tree. the object to indicate heap is an array a that have two attributes: length [a] shows the number of elements in the array and
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.