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...
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...
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...
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,...
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;...
This algorithm sorts the element of A. [Build a heap A ,using a procedure 1] Repeat for J=1 to N-1 Call INSHEAP(A, J, A[J+1]) [sort A by repeatedly deleting the root of H, using procedure 2] Repeat while N>1: Call DELHEAP(A , N,VALUE) ...
// 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++ ) ...
Sorting Algorithm Quick reference Complexity Worst case time O(nlgn)O(nlgn) Best case time O(n)O(n) Average case time O(nlgn)O(nlgn) Space O(1)O(1) Strengths: Fast. Heap sort runs in O(nlg(n))O(nlg(n)) time, which scales well as nn grows. Unlike quicksort,...
Example of Heap Sort in C++ This technique uses binary heap which is constructed using a complete binary tree where the root node is greater than its two children nodes. Consider the given array of data sets. Let us go according to the algorithm. It says to select the highest element as ...
#include<cassert> #include<iostream> #include<math.h> #include<set> #include<iomanip> #include<algorithm> using namespace std; //最大堆类 template<typename Item> class MaxHeap { public: MaxHeap(size_t capacity=100) :data(new Item[capacity]), count(0), capacity(capacity) {} ...