algorithm ch6 heapsort 堆排序利用的是堆这种数据结构来对进行排序,(二叉)堆可以被视为一棵完全的二叉树,树的每个节点与数组中存放该节点的值得那个元素对应。这里使用最大堆进行排序算法设计,最大堆就是parent(i) > leftchild(i) 且parent(i) > rightchild(i),首先利用迭代法进行建堆。 View Code 下面是...
快速排序QuickSorttemplate <class Item> void quickSort (Item a[], int l, int r) { if (r<=l) return; int i = partition(a, l, r); quickSort(a, l, i-1); quickSort(a, i+1, r); } template <class Item> int partition (Item a[], int l, int r) { int i = l -1, j...
它也具有三个参数,参数意义与make_heap()相同,第三个参数应与make_heap时的第三个参数保持一致。大顶堆sort_heap()后是一个递增序列,小顶堆是一个递减序列。 请在使用这个函数前,确定序列符合堆的特性,否则会报错! #include<iostream> #include<vector> #include<algorithm> #include <queue> #include <funct...
开发者ID:junxxx,项目名称:data-structure-and-algorithm,代码行数:35,代码来源:main.c 示例6: main ▲点赞 1▼ voidmain(void){intarr[10]={9,8,70,6,5,4,3,2,1,0};heap_sort(arr,10,1);inti;for(i =0; i <10; i++)printf("%d ",arr[i]); } 开发者ID:B-Rich,项目名称:taurus,...
Sorting Algorithm Quick reference Complexity Worst case time Best case time Average case time Space Strengths: Fast. Heap sort runs in time, which scales well as n grows. Unlike quicksort, there's no worst-case complexity. Space efficient. Heap sort takes space. That's way better ...
parent--;// (即将重排之子树的)头部向前一个节点 } } 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 九、heap算法演示案例 演示案例① #include <iostream> #include <algorithm> usingnamespacestd;...
Heapsort algorithm HEAPSORT runs in a higher efficiency way. It has been improved to reduce the constant factor of the complexity. An asymptotic optimal heapsort algorithm is given in this paper. When the efficiency becomes the lowest, the constant factor of its complexity will not be more ...
// CPP program to illustrate// std::sort_heap#include<vector>#include<algorithm>#include<functional>#include<iostream>intmain( ){usingnamespacestd;vector<int> vt1, vt2;vector<int>::iterator Itera1, Itera2;inti;for( i =1; i <=5; i++ ) ...
堆排序(Heap-Sort)是堆排序的接口算法,Heap-Sort先调用Build-Max-Heap将数组改造为最大堆,然后将堆顶和堆底元素交换,之后将底部上升,最后重新调用Max-Heapify保持最大堆性质。由于堆顶元素必然是堆中最大的元素,所以一次操作之后,堆中存在的最大元素被分离出堆,重复n-1次之后,数组排列完毕。整个流程如下: ...
Heap Sort is a popular and efficient sorting algorithm in computer programming. Learning how to write the heap sort algorithm requires knowledge of two types of data structures - arrays and trees. In this tutorial, you will understand the working of heap