Insert Sort---Direct insert sortint a[10];for (int i=1;iif (A[i] {int j = i-1;int t = a[i];while (T{A[J+1] = A[j];j--;}A[J+1] = x;}}Time complexity: T (n) =o (n^2)Insert Sort---hill sortYou should first understand the Hill sorting algorithm:For example, suppose you have a group of numbers [13 14 94 33 82 25 59 94 65 23 45 27 73 25 39 10], and if we start with a step of 5, we can better describe the algorithm by placing the list in a table of 5 columns, so they should look like this:13 14 94) 33
Insert Sort
public static int[] Sort (int[] a) {
int length = a.length;
for (int i = 1; i
Hill Sort
public class Shellsort {
static public int[] Sort (int[] a) {
int len = a.length;
int DK = LEN/2;
while (DK >= 1) {
//system.out.println (DK);
Shellinsert (A, DK);
, and the goal is achieved, this location relationship does not need to be accurate, it is useless to determine this level by using the acronyms "Up, down, and right ".System. People who have received such training for a long time, such as those who have received visual art training for a long time, can be fast and accurate. Generally, they generally say that this person's artistic feeling is accurate.
Another experiment: rotate and tilt the test diagram (figure A) and options to a certain angle
)
The point has come. When the increment is reduced to 1 o'clock, the sequence is basically orderly, and the last trip to the hill sort is the direct insertion sort that approximates the best case . The "macro" adjustment of the previous trips can be regarded as the preprocessing of the last trip, which is more efficient than only one direct insertion.
I was learning python, and today Python implements the hill sort.
def shellinsetsort (Array, Len_array, DK
;voidPrintintA[],intNinti) {cout":"; for(intj=0; j8; J + +) {cout" "; } coutEndl;}/** * Direct Insert sort general form * * @param int DK Shrink increment, if direct insert sort, dk=1 **/voidShellinsertsort (intA[],intNintDK) { for(intI= DK; ii) {if(A[i] //if the first element is greater than the i-1 element, it is inserted directly. Less then, move the orde
namespacestd;voidShellinsertsort (intA[],intNintDK) { for(inti = DK; ii) {if(A[i] DK]) { //if the first element is greater than the i-1 element, it is inserted directly. Less then, move the ordered table after inserting intj = i-DK; intx = A[i];//Copy as Sentinel, which stores the elements to be sortedA[i] = A[I-
I have been studying the data structure for a long time. I feel that teacher Yan Weimin spoke very well, but I still want to read it several times and use this pseudo code to write the code.The algorithm is not so easy to write. Although you know the specific sorting method, it is not so easy to implement it by code! Read more exercises on your own!I will not mention it. Below I will post the code for successful implementation. The Code is based on the imitation provided by Yan Weimin's video an
is treated as a table, and the length of the table is the length of the entire sequence.voidPrintintA[],intNinti) {cout; for(intj= 0; j) {cout; } coutEndl; } /*** Direct Insert sort in general form * *@paramint DK Shrink increment, if direct insert sort, dk=1 **/ voidShellinsertsort (intA[],intNintDK) { for(intI= DK; ii) { if(A[i] //if the fi
records to be sorted by an increment D(the number of n/2,n to be sorted) into several sets of sub-sequences, each group of recorded subscript difference D. direct insertion of all elements in each group, It is then grouped with a smaller increment (d/2), followed by a direct insert sort in each group. Continue to shrink the increment until it is 1, and finally use the direct insert sort to complete the sorting. 1 /**2 *3 * @authorZhangtao4 */5 Public classShellinsertsort6 {7 Public St
process converges. A completed optimization algorithm consists of these three parts. The process of calculating the step size can be basically independent of the first step, and the third step and the first step are the most closely related to the entire algorithm.
The evaluation of an algorithm includes the following aspects: first, the convergence speed of the algorithm, then the computing complexity of the algorithm, and finally the stability of the algorithm. The stability consideration is
) * (Tx-Lx) + (Ty-Ly) * (Ty-Ly ));}// The Wolf's position changes and points to the rabbit's line segment to run the Ld distance, corresponding to the ldx and ldy ComponentsDouble NextL (){Double dx = fabs (Tx-Lx );Double dy = fabs (Ty-Ly );Double k, dk;Int usek = 1;Double ldx;Double ldy;//If (dx> 0.00000000001){K = dy/dx;} Else{Usek = 0;Dk = dx/dy;}//If (usek = 1){Ldx = sqrt (Ld * Ld)/(k * k + 1 ));Ldy = k
This article mainly introduces how to implement Hill Sorting in python and how to implement Hill sorting by programming, which has some reference value, interested friends can refer to this article mainly to introduce how to implement Hill Sorting in python. The Hill sorting implemented by programming has some reference value. interested friends can refer to it.
Observe "insert sort": in fact, it is not difficult to find that she has a disadvantage:
If the data is "5, 4, 3, 2, 1", we insert the
sequence is basically ordered, and the last hop of the hill sort is the insert sort that is close to the best condition. You can consider the previous "macro" adjustment as the preprocessing of the last trip, which is more efficient than simply inserting and sorting once.
I learned python. Today I use python to implement the hill sorting.
Def ShellInsetSort (array, len_array, dk): # Insert the sort directly for I in range (
Domainkey Introduction:
Yahoo's technology is known as the "DNS-side electronic signature (DomainKeys)", designed to deal with a variety of spam messages that have been transformed.
Spam often cheats the user by altering the e-mail message, and users tend to mistakenly think that this is not spam, and that the likelihood of opening a view is increased.
Yahoo's "DomainKeys" allows e-mail-receiving systems to check for e-mails to determine whether the sender's identity is false.
"DomainKeys" v
step d2Settings for an incremental sequence:So far, one of the best incremental sequences has not been obtained, and the approach proposed by Hill is that.Example:Algorithm:voidShellsort (Elemtype a[],intN) {//The following modifications are made to the sequential table as a hill insert sort, compared to the direct insert sort://1. The increment of the recording position is DK, not 1//2.r[0] is just a staging unit, not a sentry, when j for(
get the shortest distance and the shortest length from City A to city e?
[Analysis] the entire process from A to E is divided into four stages, and K is used to represent the stage variables. in Stage 1, there is an initial State A and two optional branches (ABL and Ab2; stage 1 has two initial statuses: B1 and B2, and B1 has three available branches. B2 has two available branches ....... Use DK (XK, XK + 1) Indicates that XK is in the initial statu
Yesterday I installed Ruby 1.9.2 and added the path to the devkitConfig. ymlAnd useRuby DK. RB installInstall (unfortunately, do not pay attention to the installation information ).. But still cannot build native gem. Therefore, reinstall Ruby and install it according to the devkit installation instructions. Still incorrect. Step 1 of devkit installation instructions is run installation scripts:
CD From step 3 above.
Ruby
parameter X in the function, then we think of the function as a function of x. Similarly, since the goal here is the learning rate α in the function, we consider the function as a function of α. And because the general function model is: F (XK+ΑDK), where the DK is the search direction (as for gradient descent, the DK is the negative gradient direction), so after the conversion perspective, we see it as a
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.