heap sort python

//Take the larger child nodes in the left and right child nodes of I - if(J -j + +; the - if(A[i] -Swap (A[i], a[j]); - Else + Break; -} +} A at //From right to do, from bottom to top - voidHeapsort (intA[],intN -{ - ///First step: Establish Dagen (I is the first non-leaf node, n is the number of nodes) - for(inti = N/2; I >= 1; i--) -{ inHeapadjust (A, I, N); -} to + for(inti = n; I >= 1; i--) -{ the //Second step: Swap

First use 2 as the benchmark, using the I-j two pointers are scanned from both sides, separating the elements smaller than 2 and the elements larger than 2. First, compare 2 and 5, 5:2, J shift left.2 2 4 9 3 6 7 1 5 compare 2 and 1. 1 is less than 2, so put 1 in the 2 position2 1 4 9 3 6 7 1 5 compare 2 and more than 2, so move 4 to the back (original 1 position)2 1 4 9 3 6 7 4 5 Compare 2 and 7,2 and 6,2 and 3. 2 and 9, all greater than 2. satisfies the condition and therefore does not change

/** (max) heap down adjustment algorithm * * Note: array implementation of the heap, the nth node of the left child's index value is (2n+1), the right child's index is (2n+2). * where n is an array subscript index value, and the 1th number in the array corresponds to n 0. * * Parameter Description: * A--the array to be sorted * Start--The starting position of the node being lowered (typically 0, indicating

Four, (1) heap sorting The first time to listen to heap sorting is in 107lab listen to brother, but did not say how to achieve. At that time just looked at the data structure of the two-tree, but also thought to be through the pointer to establish a two-tree way to achieve, feel very difficult. In fact, the heap sort

Topic Information1098. Insertion or Heap Sort (25)Time limit (MS)Memory Limit 65536 KBCode length limit 16000 BAccording to Wikipedia:Insertion sort iterates, consuming one INPUT element each repetition, and growing a sorted output list. Each iteration, insertion sort removes one element from the input data, finds the

One, what is a heapA heap is a complete binary tree with the following properties. Each node is greater than or equal to the value of its left and right child nodes, called the Big Top heap.Or the value of each node is less than or equal to the value of the left and right child nodes, called the small top heap.Second, if you sort by heapAs defined by the heap, th

Title Addresshttps://pta.patest.cn/pta/test/16/exam/4/question/6765-14 insertion or Heap Sort (25 points)According to Wikipedia:Insertion Sort Iterates, consuming one INPUT element each repetition, and growing a sorted output list. Each iteration, insertion sort removes one element from the input data, finds the locati

Hill SortPackage Shellsort;import utils.sortutils; Public classDemo { Public Static void Shellsort(int[] a) {intTemp,j;intincrement = A.length; Do{increment = increment/3+1;//If it is a direct insert sort, the increment here are 1. //system.out.println (increment); for(inti = increment; i if(A[i]//Staged in temp for(J=i-increment; j>=0 a[j]>temp; j-=increment) {A[j+increment] = a[j];//record and move back to

The previous article used the Quicksort method to sort, but if the rapid sorting method for high repetition rate of slice, time complexity will soar, the speed is quite slow, so try to heap sorting, experimental results, feel very good. Here is the code, you can refer to, This is the building of the big top pile. Two fork tree features: Last Non-leaf node: root = LENGTH/2 (root down rounding when length is

= (i+1) 1; intCurmax = p->heapsize; if(Left Array[i]) {Largest=Left ; }Else{Largest=i; } if(Right Array[largest]) {Largest=Right ; } if(Largest! =i) {swap (array[largest],Array[i]); Adjust (p,largest); }}voidHeap_sort (Heap *p) { int*array = p->Array; intI,len = p->Len; for(I= (len>>1)-1; i>=0; i--) {fprintf (stdout,"Build%d\n", i); Adjust (p,i); } while(P->heapsize >0) {Swap (array[0],array[p->heapsize]); P->heapsize--; Adjust (p

In the external links below, fromHill sort The essence of the hill sort is the grouping insert sort, which is also known as narrowing the incremental sort, because of the DL. The shell was named after it was introduced in 1959. In fact, the so-called increment is the first number after the beginning of a

elements labeled 1~n in a set of arrays sorted by a heap sorting algorithm $ */Panax Notoginseng voidHeap_sort (Type array[],intN) - { the inti; + time_t start,end; AStart =clock (); the for(i=n/2; i>=1; i--) + { -Sift (array,i,n);//Build the initial heap $ } $ for(i=n;i>=2; i--)//controlling the sorting process - { - type temp; thetemp = array[1]; -array[1] =Array[i];WuyiArray[i]

#include The heap can be seen as a complete binary tree, and the small heap sort takes advantage of the smallest of keywords in the top record of a small root heap, making it easy to select the smallest keyword from the current unordered area and further record the operation.C + +