thinkful coding

Start from difficulty 1:1, Remove specified Elem from unsorted array:2 pointers, one was to iterate all the elements in the array, the. Increase if current value was not equal to specified element.2, Remove duplicates from sorted Array:still 2 pointers, compare current value with Previous.3, Remove 3rd duplicate from sorted Array:on 2, with another var to store the appearance number.4, Remove duplites from sorted linked List:prev Curr, then pay attention to NULL head input.[Java

made an individual name (Python2 str is bytes, py3STR is Unicode), there is no more than the same as py3 to show you a layer of packaging, but in fact, it is encapsulated inside. So let's say, whether it's 2 or three,From hard disk to memory, the data format is 101,012 binary to-->b'\XE4\XBD\XA0\XE5\XA5\XBD'Bytes Type--turn to you with the specified codeCan understand the text encoding application more than the scene should be a reptile, many web sites on the Internet with a very miscellaneous

(runtime), For example: it is closely related to the current page data.Introduces the answer text that is innate by the execution page or servlet.Request Processing phase:The JSP container, in addition to the above-mentioned emphasis on translating JSP pages into Servlets , also attaches importance to invoking JSP page implementation classes to process each request and generate an answer . This phase is called the request processing phase . The request processing phase executes only class docum

This article describes the method of Asp.net+js to realize batch coding and decoding. Share to everyone for your reference, specific as follows: The C # code is as follows: using System; using System.Collections.Generic; using System.Linq; using System.Web; u Sing System.Web.UI; Using System.Web.UI.WebControls; Public partial class _default:system.web.ui.page {protected void Page_Load (object sender, EventArgs e) {if (Re que

URL coding Problems in iOS Roche (http://www.cnblogs.com/kesalin/) This article follows the authoring common agreement "signed-non-commercial-Consistent" NSString's stringbyaddingpercentescapesusingencoding can encode URL parameters, but there is a slight problem that does not encode all the characters that need to be encoded. We can go through the cfstringref. Cfurlcreatestringbyaddingpercentescapes function to encapsulate this function. The code is

The problem of Chinese coding is always a headache in Python programming, this paper summarizes it in detail. Specifically as follows:When the string is: ' \U4E2D\U56FD ' >>>s=[' \u4e2d\u56fd ', ' \u6e05\u534e\u5927\u5b66 '] >>>str=s[0].decode (' Unicode_escape ') # Encode ("Euc_kr") >>>print str China When the string is: ' An East Asian school group ' >>>print UNICHR (19996) East Ord () supports Unicode, which can display

The php file should be stored as ANSI, and code can be changed when encoding. Copy Code code as follows: Coding for gb2312, most of the Web page is still used gb2312, a small part with Utf-8, Www.baidu.com unexpectedly two all use, so read Baidu's web page How to do is no problem Header (' content-type:text/html; charset=gb2312 '); Encoded as Utf-8 Header (' content-type:text/html; charset=gb2312 '); Encoding XML as Utf-8, bu

Re-understanding Unicode and UTF8 encoding Until today, to be exact, I just realized that UTF-8 encoding and Unicode coding are not the same, and that there is a difference between embarrassingThere is a certain connection between them, to see the difference between them:The length of the UTF-8 is not necessarily, it may be 1, 2, 3 bytesUnicode length must be 2 bytes (USC-2)UTF-8 can convert to and from Unicode The relationship between Unicode and U

First, understand the difference between encode () and Decode () The role of Encode () is to convert a Unicode-encoded string to another encoding format. For example: St1.encode ("Utf-8") is the function of encoding a UNICODE encoded ST1 as a UTF-8 encoded string The role of Decode () is to convert strings of other encoded formats into Unicode-encoded strings. For example: St2.decode ("Utf-8") is a sentence that decodes a utf-8 encoded string st2 into a Unicode-encoded string Second, in add

With the blogspot, the domestic use of Google bloggers more and more people, everyone in use, should have found a blogger in the code has a small bug. This bug is only available for IE browsers and does not exist for Firefox browsers. is in IE browsing their own blog, and sometimes the code will automatically become GB2312, and the actual encoding should be UTF-8, so it shows the blank. The solution to this problem is very simple, in the Blogger management interface, click "Template", and then

Code Coding for PHP website The name of a variable A) All letters use lowercase b The first letter is specified according to the variable value type I. Integer i Ii. floating-point number F Iii. string S Iv. Boolean value B V. Array A Vi. object o Vii. Resources R Viii. Mixed Type M C Use ' _ ' as a dividing line for each word For example: $i _age_max = 10; $f _price = 22.5; $s _name = ' Harry '; $b _flag = true; $a _price = Array ();

Coding | specification First, the name of the type-level unit 1, class. Classes declared by class, must be named after the noun or noun phrase, reflecting the role of the class. Such as: Class indicator When a class is an attribute, the end of the attribute, when the class is an exception (Exception), ends with Exception: Class colorsetexception Class Causeexceptionattribute When a class has only one object instance (global object, such as application

The first is simple coding, the code is as follows /** * Two-dimensional encoding based on strings * @param str needs to encode the string * @param widthandheight the height of the bitmap that needs to be generated @return * /Public Bitmap enCode (String str,int widthandheight) { if (!str.equals ("") str!=null) try {return encodinghandler.createqrcode (str, widthandheight); } catch (Writerexception e) { //TODO

Div+css is one of the commonly used terms in Web site standards (or "web standards"), usually to illustrate the difference in how tables are positioned in the HTML web design language, because the XHTML web design standard does not use the table positioning technique, but instead uses the div+ CSS way to achieve a variety of positioning. It is easy to make some mistakes when applying div+css coding. This article lists some of the common errors: Recom

Bit rate control is actually a coding optimization algorithm, which is used to control the video stream size. So what is the purpose of its control? We can imagine that the same video encoding format, the code flow is large, it contains more information, then the corresponding image is clearer, and vice versa. The two current control modes are VBR and CBR,VBR are dynamic bit rate, CBR is fixed bit rate. So how did they come to realize it? We first loo

Coding | skills | optimization ASP (Active Server Page) is an ISAPI based (Personal WEB server) iis (Internet Information Server) platform launched by Microsoft Corporation (PWS) ( INTERNETSERVICEAPI) Principle of Dynamic Web page development technology, is increasingly mature and perfect. Here are just some simple discussions about code optimization.1. Declaring VBScript variablesIn ASP, there is strong support for VBScript, the ability to seamlessly

QT starts by default is Utf-8, and VS2013 default program is encoded as gb2312;This will find the use of Chinese language when garbled.There are generally two solutions:1. When using Chinese, use QtextcodecQtextcodec *gbk=qtextcodec::codecforname ("gb2312");QString Str=gbk->tounicode ("Chinese");This is more cumbersome to use, it is recommended to use the second2. Change the "Newc++file.cpp" and "hfile.h" files in the "Microsoft Visual Studio 12.0\vc\vcprojectitems" directory. Add a similar to t

): One of the first things to consider is: If you use the command line mode, by default the character encoding format is GBK, that is, the client's data encoding is GBK; If the server to identify the client came from the Chinese, then you need to set the server to think that the client's character set is gbk;set character_set_client = ' GBK '; If the server wants to return Chinese to the client, the character set of the data returned to the client by the server needs to be gb

that the configuration file has been modified, the encoding is already utf8mb4 when recreating a new database. Now the problem is how to modify the default character set for an existing database. By looking at the MySQL manual (https://dev.mysql.com/doc/refman/5.7/en/alter-database.html), you can: ALTER DATABASE ALTER DATABASE After changing the default encoding of the database, the code of the table originally created in the database has not been modified, and the modified table is encoded

) {E.printstacktrace ();}finally {Close (connection, NULL, NULL);}}=============================================================Ways to close resourcespublic void Close (Connection Connection,PreparedStatement Preparedstatement,resultset ResultSet) throws exception{if (resultset!=null) {Resultset.close ();}if (preparedstatement!=null) {Preparedstatement.close ();}if (connection!=null) {Connection.close ();}}} Dbutils Open Source JDBC Class library, simple encapsulation of JDBC (function: Simplif