Tips for using Terminal

Directly configure, you knowLai 'mac :~ Laijingli $ more. bash_profile### Add my scripts to the search path for convenient daily usageExport Path = $ path:/users/laijingli/autoshell:/opt/local/bin:/opt/local/sbin### Alias for normal useAlias grep = '

SG function preliminary HDU 1536 & HDU 1944

Question link: http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1944 Http://acm.hdu.edu.cn/showproblem.php? PID = 1, 1536 Given the number of stones each time, given many situations, each case has several piles of stones to determine whether the

Codility problems (34) fluorum 2014

I haven't written the codility question for a long time, so I have no time, and I am not very good at analyzing some questions. This question is interesting, and I have not provided a very strict proof. Given a tree (undirected acyclic graph),

Simply record a ORA-00600: Internal error code, arguments: [2662]

Next, redo error after the Open Database and the error ORA-00600: Internal error code, arguments: [2662]. The reason is _ allow_resetlogs_uption after resetlogs open the database, we may encounter ORA-00600 2662 error due to inconsistent SCN, here

Next we will discuss the content length limit of uitextview under multistage text input (Chinese Input Method)

I have written an article titled how to better limit the input length of a uitextfield. The final conclusion of this article is that it can be directly used. UIKIT_EXTERN NSString *const UITextFieldTextDidChangeNotification; Listen to and cut out

HDU-4550 card games

DescriptionJames was bored at home recently, so he invented an interesting game. Game props are n cards stacked together, each card has a number ranging from 0 ~ 9. The game rules are as follows: First, take the top card and put it on the table.

Qt5 official demo release set 18 -- Chapter 4: using custom property types

All articles in this series can be viewed here in http://blog.csdn.net/cloud_castle/article/category/2123873 Link to qt5 official demo release set 17 -- Chapter 3: Adding property bindings In the previous "Pie Chart" demo, we defined the "name" and

Full site Compression

Import java. Io. bytearrayoutputstream; Import java. Io. ioexception; Import java. Io. outputstreamwriter; Import java. Io. printwriter; Import java.util.zip. gzipoutputstream; Import javax. servlet. filter; Import javax. servlet.

Poj 2421 constructing roanalyticdb

Minimum Spanning Tree problem. Kruskal. merge if an edge already exists. Find the minimum value. No pitfalls. G ++ AC. #include#include#include#include#include#include#include#include#include#include#include#define INF 0x7fffffff#define eps

Codeforces 30C shooting gallery simple DP

Question link: Click the open link N balloons The following n rows x y t Val indicate the time when the coordinates (x, y) of the balloon appear t, the value of the balloon Val The distance of the gun moving in 1 unit per second Q: The maximum value

JDK built-in scheduled tasks

Import Java. util. timertask;/*** implement scheduled task **/public class mytimertask extends timertask {@ overridepublic void run () {int num = 0; while (Num Import Java. util. timertask;/*** start scheduled task **/public class mytimer

Three-tier architecture and four major Kings-change

Today, let's take a look at the last one in the "Four Kings"-modifying information in the database. Why should we put the changes after the query? This is because the information must be checked out before modification, so the query is the

Here is also a tutorial on infragistics WPF Report (1)

Preface Infragistics report is a flexible report control. It is better to adjust the page control than Microsoft's rdlc control at least on page printing. Here we use the trial version of infragistics ultimate v14.1 The development tool is a visual

Notes on High Cohesion and low coupling

In general, the design principles of high cohesion and low coupling should be realized in actual software development. C language is different from C ++. C language is process-oriented and C ++ object-oriented. In a real project, the original

Warning: Shared Library text segment is not writable able

Warning: Shared Library text segment is not writable ableError: treating warnings as errors Recently I am debugging A gsensor. The code is directly transplanted from android4.2. But it has been compiled for a long time...Baidu does not workGoogle

Detailed description of the VxWorks Startup Process (II)

The previous section mainly looks at the VxWorks startup process from the image classification and the general loading process of various images. This section shows the START process of VxWorks at the function level:1. Boot Image + loadable images:

Qt5 official demo release set 20 -- Chapter 6: writing an extension plugin

All articles in this series can be viewed here in http://blog.csdn.net/cloud_castle/article/category/2123873 Link to qt5 official demo release set 19 -- Chapter 5: Using list property types The piechart and pieslice custom qml types we defined

Access conflict occurred when writing location

  Access conflict occurred when writing location The reasons are summarized as follows: 1: The uninitialized pointer is used (no space is allocated to the pointer) 2: The deleted pointer is used. In short, it is the reason why the pointer is

Qt5 Coordinate System

This time, there was basically no major error .. Based on the down-Down Function of the buttons, the up-down function is implemented, and the rotate () function is rotated. Myitem. h # Ifndef myitem_h # define myitem_h # include class myitem:

[IDC reconstruction] connectionstring property has not been initialized

Data Center reconstruction ing. In every study, we have always been with us, but we still have problems of both big and small. It is because of their existence that we have learned what we have learned, learned, and had fun. Over the past few days,

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