STL exercise program (remove identical elements)

# Include # Include # Include Using Namespace STD; Int Testscore [] = { 67 , 56 , 24 , 78 , 99 , 87 , 56 }; Void Main (){Vector Int > Score (testscore, testscore + Sizeof (Testscore )/ Sizeof ( Int ));Vector Int >:: Iterator it;Copy (score.

Pyhton_django learning notes (4) template

Simple use of templates:From Django import Template T = template. template ('My name is {name }}.') C = template. Context ({'name': 'Nick '}) Print T. Render (c) Create a template object and instantiate it. The default constructor directly accepts

Div border style settings

1. convex border: Effect:Log textCode: log text Code Description:The blue part can be modified:Four 2 represents the width of the raised border, 1 is not obvious, 2 or 3 is more appropriate;Four outsets indicate that the border type is "Raised".

Process thread shared memory communication

// Ccommetedlg Message Processing ProgramBool ccommetedlg: oninitdialog (){Cdialogex: oninitdialog ();////////////////////////////////////// Add the "about..." menu to the system menu.Sharedmemory = createfilemapping (handle) 0 xffffffff, null, page_

Boost exercise program (smart pointer)

# Include # Include # Include # Include Class{Public:A (STD: String s) {A = s ;}STD: string;Void print () {STD: cout };Void main (){Boost: shared_ptr P1 (new A ("2345 "));Boost: shared_ptr P2 (new A ("dfgds "));STD: vector m;STD: vector ::

MATLAB exercise program (image enlargement/reduction, enlargement without interpolation)

Cl;W = 0.7; % the width of the zoom in or outH = 1.5; % zoom in or out heightImg‑imread('corner.png ');Imshow (IMG );[M n] = size (IMG );Imgn = zeros (H * m, w * n );Rot = [H 0 0; 0 w 0; 0 0 1]; % transformation matrix X = H * u, y = W * VFor u = 1:

OpenGL mouse click event

# Include // windows header file# Include // header file of the opengl32 Library# Include // header file of the glu32 Library# Include // header file of the Glaux Library# Include // the header file of the glut Library# Pragma comment (Lib,

Win32 SDK (dialog box Program)

#include #include #include "resource.h"TCHAR DlgName[]=TEXT("MyDialog");TCHAR AppName[]=TEXT("Dialog");;//TCHAR TestString[]=TEXT("hello world");TCHAR buffer1[512];TCHAR buffer2[512];TCHAR *buffer3=NULL;int a=0,b=0,c=0;HINSTANCE g_hInstance;INT_PTR

Opengl3d graphic rendering

Glfloat xtri;Glfloat ytri;Glfloat ztri;Int drawglscene (glvoid) // start to draw all{Glclear (gl_color_buffer_bit | gl_depth_buffer_bit); // clear the screen and depth CacheGlloadidentity (); // resets the model observation matrix.Gltranslatef

MATLAB exercise program (gray scale, binary image corrosion expansion)

Cl;Img_gray1_imread('fupeng.jpg ');Img_erzhi1_imread('erzhi_fupeng.jpg ');Imshow (img_gray)Figure, imshow (img_erzhi)[M n] = size (img_gray );Img_gray_fu = zeros (m, n );Img_gray_peng = zeros (m, n );Img_erzhi_fu = zeros (m, n );Img_erzhi_peng =

Randomization quick sorting

#include #include #include using namespace std;int random(int a,int b){ srand(NULL);return rand()%(b-a)+a;}void exchange(int &a,int &b){int temp; temp=a; a=b; b=temp;}int partition(int *a,int p,int r){int x=a[r];int i=p-1;for (int j=p;j

Contos Development and Application

Question: n different characters are given, and their relative size order is given. In this way, all the n characters are sorted in an order. now let's give an arrangement and find the I-th arrangement after it.This is a typical application of

Common STL containers

STL is a very important template in C/C ++ development, and various containers defined in it are also very convenient for us. Next, let's talk about some common containers. Here we will not discuss the basic operations of containers, but the

Manual alignment of bytes in the structure (# pragam pack)

During the program running, the byte alignment of the struct or class can make the program more convenient and faster to execute. In addition to the optimization of the compiler itself, it can also be manually alignment in the program. In C/C ++, #

Higher efficiency of ++ I and I ++

Reprinted: http://blog.chinaunix.net/uid-21843387-id-105857.html Answer: There is no difference in efficiency in the case of internal data types; In the case of custom data types, ++ is more efficient! Analysis: (In case of custom data types) +

Reload, overwrite, and hide member functions

Reprinted: http://www.cnblogs.com/qlee/archive/2011/07/04/2097055.html It is easy to confuse overload, override, and hide member functions. c ++ programmers must understandConcept, otherwise the error will be hard to prevent.1. Heavy Load and

MATLAB exercise program (White Balance)

Clear all; close all1_clc1_im1_imread('2.png '); IM2 = Im; im1 = rgb2ycbcr (IM); % convert the RGB value of the image to YCbCr Value % lu = im1 (:,:, 1); Cb = im1 (:,:, 2); CR = im1 (:,:, 3); [x y z] = size (IM ); tst = zeros (x, y); % calculate the

MATLAB exercise program (PCA)

Clear all; close comment '); img1 = imresize (img1, [35 90]); % MATLAB's SVD does not support too much data and I have reduced the data. img2 = imresize (img2, [35 90]); img3 = imresize (img3, [35 90]); [height width] = size (img2 ); A = reshape

MATLAB exercise program (linear classifier)

Clear all; close all; clc; num = 4; % Number of elements K = 180; % iterations step = 0.1; % iteration step W (1, :) = [-0.5 1 1]; % weight x = [1 0 0; % input value, each row is a group of 1 1 0; 1 0 1; 1 1 1 1]; D = [1 0 1 0]; % actual output

Boost exercise program (program_options)

# Include # include # include int main (INT argc, char ** argv) {namespace po = boost: program_options; PO :: option_description DESC ("allowed options"); DESC. add_options () ("help, H", "Help message") ("version, V", "display verison"); PO:

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