Newbe Dev Stack

Answer : The Formula It's actually very easy to compute N choose K without even computing factorials. We know that the formula for (N choose K) is: N! -------- (N-K)!K! Therefore, the formula for (N choose K+1) is: N! N! N! N! (N-K) ---------------- = --------------- = -------------------- = -------- x ----- (N-(K+1))!(K+1)! (N-K-1)! (K+1)! (N-K)!/(N-K) K!(K+1) (N-K)!K! (K+1) That is: (N choose K+1) = (N choose K) * (N-K)/(K+1) We also know that (N choose 0) is: N! ---- = 1 N!0! So this gives us an easy starting point, and using the formula above, we can find (N choose K) for any K > 0 with K multiplications and K divisions. Easy Pascal's Triangle Putting the above together, we can easily generate Pascal's triangle as follows: for (int n = 0; n < 10; n++) { int nCk = 1; for (int k = 0; k <= n; k++) { System.out.print(nCk +

Example: CocoaPods could not find compatible versions for pod "ReactCommon/jscallinvoker" // replace pod 'ReactCommon/jscallinvoker', :path => "../node_modules/react-native/ReactCommon" //with pod 'ReactCommon/callinvoker', :path => "../node_modules/react-native/ReactCommon"

Example: bootstrap table < table class = " table " > < thead > < tr > < th scope = " col " > # </ th > < th scope = " col " > First </ th > < th scope = " col " > Last </ th > < th scope = " col " > Handle </ th > </ tr > </ thead > < tbody > < tr > < th scope = " row " > 1 </ th > < td > Mark </ td > < td > Otto </ td > < td > @mdo </ td > </ tr > < tr > < th scope = " row " > 2 </ th > < td > Jacob </ td > < td > Thornton </ td > < td > @fat </ td > </ tr > < tr > < th scope = " row " > 3 </ th > < td > Larry </ td >

Example 1: delete conda from machine conda install anaconda - clean # install the package anaconda clean anaconda - clean -- yes # clean all anaconda related files and directories rm - rf ~ / anaconda3 # removes the entire anaconda directory rm - rf ~ / . anaconda_backup # anaconda clean creates a back_up of files / dirs , remove it # ( conda list ; cmd shouldn ' t respond after the clean up ) Example 2: uninstall anaconda ubuntu # Install anaconda - clean conda install anaconda - clean # start anaconda - clean anaconda - clean -- yes

Answer : I too had issues with this.. The answer depends on what logging system commons-logging is using under the hood. (since common-logging is just a wrapper). See the following http://commons.apache.org/proper/commons-logging/guide.html#Configuring_The_Underlying_Logging_System The attribute you mention above (org.apache.commons.logging.simplelog.defaultlog) should only be valid if the simple logger is been used. If you are running on JDK 1.4 or higher however it should default to using the JDK logging. In which case it defaults to using the lib/logging.properties from the JRE install location. In my case I had Log4j in the classpath, so it defaulted to that. To take away the randomness of all this you can explicitly set the Logger yourself. Create a commons-logging.properties file in the classpath and pass in the logger to use e.g. # JDK Logging #org.apache.commons.logging.Log=org.apache.commons.logging.impl.Jdk14Logger # Log4j logging (also required log4j.jar to be in

Answer : Just do ng serve --live-reload false or ng serve --no-live-reload It used to not work, this PR solved it. serve your application with this command: ng serve --live-reload=false if you want to run your application in prod mode , use following command ng serve --source-map=false --aot --prod --live-reload=false I think you only want to disable the rebuild on change option Just try: $ ng serve --watch=true|false

Example 1: c++ online compiler This two are good C ++ compilers : https : //www.onlinegdb.com/online_c++_compiler https : //www.programiz.com/cpp-programming/online-compiler/ Example 2: cpp online compiler Best Site With auto compile : https : //godbolt.org/z/nEo4j7 Example 3: cpp compiler online Three good online compilers : https : //www.onlinegdb.com/online_c++_compiler https : //www.programiz.com/cpp-programming/online-compiler/ http : //cpp.sh/ Example 4: online compiler cpp Good cpp compilers : -- -- -- -- -- -- -- -- -- -- - repl . it / languages / cpp www . w3schools . com / cpp / trycpp . asp ? filename = demo_helloworld onlinegdb . com / online_c ++ _compiler programiz . com / cpp - programming / online - complier cpp . sh

Example: simple alert program in javascript alert ( "this is the alert" )

Answer : You can find all buttons by text and then execute click() method for each button in a for loop. Using this SO answer it would be something like this: buttons = driver.find_elements_by_xpath("//*[contains(text(), 'My Button')]") for btn in buttons: btn.click() I also recommend you take a look at Splinter which is a nice wrapper for Selenium. Splinter is an abstraction layer on top of existing browser automation tools such as Selenium, PhantomJS and zope.testbrowser. It has a high-level API that makes it easy to write automated tests of web applications. I had the following in html: driver.find_element_by_xpath('//button[contains(text(), "HELLO")]').click()

Answer : This is not an error, it's just an Android log message notifying you about when garbage collection takes place. Everything's normal. The log messages don't harm your app, see this question regarding the same topic on native Android. It's only a problem if you go out of memory, or you see performance hiccups due to garbage collection. Phew. That being said, let's see how you might get less of these messages. Typically, an emulator's resources are limited . So, the easiest way would be to increase the emulator's RAM size or use an actual phone instead of an emulator. Secondly, make sure your logic doesn't handle huge amounts of data , or if it does, that it gets disposed as soon as possible. Also, don't "cache" widgets yourself by storing them in a state like this: class _MyWidgetState extends State<MyWidget> { Widget button; @override void initState() { super.initState(); button = RaisedButton(..

Answer : Ubisoft never removed the DRM, they just made it less harsh if you get disconnected. It's still just as harsh on not being able to play while not connected. All the updated did was basically, instead of quitting the game when you get disconnected, forcing you to restart from last checkpoint, it now pauses the game until you get connection back, which means you restart from the exact same point. If you quit instead of waiting to reconnect however, then you must restart from the previous checkpoint as before.

Example 1: how to add an item to a dictionary in python a_dictonary = { } a_dictonary . update ( { "Key" : "Value" } ) Example 2: python append to dictionary dict = { 1 : 'one' , 2 : 'two' } # Print out the dict print ( dict ) # Add something to it dict [ 3 ] = 'three' # Print it out to see it has changed print ( dict ) Example 3: adding one element in dictionary python mydict = { 'score1' : 41 , 'score2' : 23 } mydict [ 'score3' ] = 45 # using dict[key] = value print ( mydict ) Example 4: Python dict add item # This automatically creates a new element where # Your key = key, The value you want to input = value dictionary_name [ key ] = value

Answer : You can increase the size of your column like this: <changeSet author="liquibase" id="sample"> <modifyDataType columnName="description" newDataType="varchar(2000)" tableName="account"/> </changeSet> The schema defintion in your xml file doesn't allow <modifyDataType ... /> . The version of the xsd file should match the version of Liquibase you are using. The exception looks like you are using the xsd of version 1.9, see http://www.liquibase.org/documentation/xml_format.html

Example 1: href on a button < button onclick = " window.location.href= ' /page2 ' " > Continue </ button > Example 2: button as href < button onclick = " location.href= ' http://www.example.com ' " type = " button " > www.example.com </ button >