1.Photo navigation principles
Generally, all images are in JPG format, which can be embedded with EXIF information. EXIF is used to record photo attributes and shooting information, and coordinate information data is a part of EXIF information. In a word, the photo navigation device reads the coordinates in the photo to navigate the coordinates.
2.Three-Step photo navigation
The first step is to take a photo and record the coordinates. The second step is to process the photo so that it car
length and is the longest possible co Mmon sequences. For example in the strands atgc and GCTG, the longest common sequences isGC and TG.Input and OutputWrite A program that accepts as input strings representing DNA strands, and prints as output the longest common se Quence (s) in lexicographical order.If there isn ' t any common sequence between the strings, just print: 'No common sequence.'If there is more than one test cases, it must is a blank line between the consecutive, both in input and
Given lists A B and, and is a anagram of. is an B anagram of means are made by A B A B Rand Omizing the order of the elements in A .We want to find a index mapping P , from A to B . A mapping P[i] = j means the i th element in A appears with at B index j .These lists and may A B contain duplicates. If There is multiple answers, output any of them.For example, givenA = [50, 12, 32, 46, 28], 50]b = [+]We should return[1, 4, 3, 2, 0]AsP[0] = 1Because the0th element ofAAppears atB[1], andP[1] = 4Bec
or/var/mail file
$ HOME/mail file
Maildir-style email directory
Maildir is a relatively new feature, which is supported by some advanced MTA, MDA, and MUA applications. A mailbox is a directory in which each message is a separate file instead of each message as part of the mailbox file.
Almost all MDA and MUA can use the/var/spool/mail email file.
Email User proxy
MUA does not receive messages and only displays messages already in the mailbox.
Many MUA can send emails (either by using the SMTP
systemPLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !To do so, start the server, then issue the following commands:./bin/mysqladmin -u root password ‘new-password‘./bin/mysqladmin -u root -h xuyuzhu-OptiPlex-990 password ‘new-password‘Alternatively you can run:./bin/mysql_secure_installationwhich will also give you the option of removing the testdatabases and anonymous user created by default. This isstrongly recommended for production se
System settings –> Battery –> Use situation, the use of statistical energy consumption is also based on Power_profile.xml value as the basic parameter1, my mobile phone power_profile.xml content: HTC t328w
Copy Code code as follows:
2, obtain the method: first obtains the framework-res.apk from the handset, then uses the Apktool tool to Decompile
The file is located in the Mobile directory:/system/framework/framework-res.apk, enter the terminal under Linux, execute the command:
Records the Issue that cannot be created in CursorWindow due to memory exhaustion (error-12) caused by cursor leakage on Android.
[Symptom]
20:27:36-30. 751 E/CursorWindow (760): cocould not allocate CursorWindow '/data/com. android. providers. media/databases/external. db 'of size 2097152 due to error-12.08-30 20:27:36. 771 E/JavaBinder (760): *** Uncaught remote exception! (Exceptions are not yet supporte
One, download ant
Download Address: http://ant.apache.org/bindownload.cgi
Download older versions of the old Ant releases found here
The address is as follows: old version download address
1.8.2 version csdn resource download: 1.8.2 version Download address
Copy the download file to the main file and extract it to the current folder
For example:/home/pateo/apache-ant-1.8.2
Second, configure environment variables
Open Terminal: pateo@pateo-optiplex-30
Although the price in the 1000-2000 yuan price segment of the graphics products are favored by the players, however, considering the number of graphics cards in this price range, not only includes AMD, nvidia two new products R9 285, GTX 960, and some in the graphics market for many years in the "Old guy" , such as R9 280X, R9 280, R9 270X, GTX 770, and GTX 760. Although these graphics cards are in the same price range, but the performance of these gr
1. Introduction of Spark Package: spark-assembly-1.4.0-hadoop2.6.0, in the Lib directory of SparkFile-->project structure2. Create a Scala project with idea and create a new WordCount objectThe 3.WordCount code is as follows:Import Org.apache.spark.SparkConfimport Org.apache.spark.SparkContextimport org.apache.spark.sparkcontext._ ObjectWordCount {def main (args:array[string]) {if(Args.length 1) {System.err.println ("Usage: ") System.exit (1)} Val conf=Newsparkconf () Val SC=Newsparkcontext (Con
Built on top of the hadoop2.6.01. Download spark-1.4.0-bin-hadoop2.6.tgz on the website2. Unzip to the folder you want to put, tar zxvf spark-1.4.0-bin-hadoop2.6.tgz3. Configure profilesudo gedit/etc/profileAdd the path configuration below the file, save the exit, and use Source/etc/profile to make the environment effectiveExport scala_home=/home/jiahong/spark-1.4. 0-bin-hadoop2. 6 export PATH= $SPARK _home/bin: $PATH4. Start Spark[Email protected]7010: ~$ CD spark-1.4.0-bin-hadoop2.6/[email pro
, 1024 width-19 becomes 1005.3, under the Opear, the width of the division rate is reduced by 23. For example, 1024 width-23 becomes 1001.Note: Firefox or opear does not display the right scroll bar when the content is less than the browser height.So if the resolution is 1024, your page is not as secure as 1000. Set to 9,002 side blank larger, visually more comfortable. Also easy to do some floating layer design.If the resolution is 800, it is generally set to 770. But there are also set to
, the width of the division rate is reduced by 23. For example, 1024 width-23 becomes 1001.Note: Firefox or opear does not display the right scroll bar when the content is less than the browser height.So if the resolution is 1024, your page is not as secure as 1000. Set to 9,002 side blank larger, visually more comfortable. Also easy to do some floating layer design.If the resolution is 800, it is generally set to 770. But there are also set to 760.Th
[RK_2014_0918] in linux, test the impact of usleep function on CPU usage. rk_2014_0918usleep
1. Local Environment
CPU information Intel (R) Core (TM) i3 cpu m 350 @ 2.27 GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Intel(R) Core(TM) i3 CPU M 350 @ 2.27GHz
Memory InformationMemTotal: 1990228 kB
2. Build Test code
1. Test code
#include while (1) { //usleep(ElapsedTime); } return 0;}
2. Compile
# g++ -o test_usleep.o test_usleep.cp
1, the basic configuration of the computer as follows.My Computer Dale OptiPlex 9020 Mini TowerOperating system Windows 7 Professional Edition 64-bit SP1Ubuntu 14.042. The process of loading the system is no longer to repeat.can refer to http://blog.csdn.net/zimosangtian/article/details/418529053, open Ubuntu, because bloggers in school use campus network, so use DSL to establish dial-up connection.After entering your account password. Prompt cannot c
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