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How to redirect cin and cout to files?
...}
Note that ios_base::sync_with_stdio also resets std::cin.rdbuf. So the order matters.
See also Significance of ios_base::sync_with_stdio(false); cin.tie(NULL);
Std io streams can also be easily shadowed for the scope of single file, which is useful for competitive programming:
#include <bi...
Maven – Always download sources and javadocs
...n my case the "settings.xml" solution didn't work so I use this command in order to download all the sources:
mvn dependency:sources
You also can use it with other maven commands, for example:
mvn clean install dependency:sources -Dmaven.test.skip=true
To download all documentation, use the fo...
Can't pickle when using multiprocessing Pool.map()
...code is pickling and unpickling in a loop, due to slight changes I made in order to make Steven's code OO'd?
– ventolin
Nov 30 '09 at 2:08
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How to fully delete a git repository created with init?
... @Van those are bash flags (options), and they can go in whatever order you'd like :)
– De Novo
Mar 4 '18 at 20:00
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What is the fastest way to compare two sets in Java?
... specific cases where:
the sets are both sorted
both sorted in the same order
The following code assumes that both sets are based on the records comparable. A similar method could be based on on a Comparator.
public class SortedSetComparitor <Foo extends Comparable<Foo>>
...
List comprehension: Returning two (or more) items for each item
...I used to find them a little confusing because I kept trying to invert the order.
– DSM
Aug 8 '12 at 17:07
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Undo git reset --hard with uncommitted files in the staging area
...in your situation, with git add .) although it might be a bit of work. In order to add a file to the index, git adds it to the object database, which means it can be recovered so long as garbage collection hasn't happened yet. There's an example of how to do this given in Jakub Narębski's answer ...
Remove/hide a preference from the screen
...ually create anything or worry about putting things back in in the correct order.
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.preferences);
PreferenceCategory prefCatOne= (PreferenceCategory)findPreference("prefCatO...
Replace transparency in PNG images with white background
...and applying background image is straight forward in ImageMagick
However, order of the commands is very important
To apply any background on a transparent image and flatten it, first apply the background than flatten it. The reverse doesn't work.
$ convert sourceimage.png -background BackgroundC...
How do I close a connection early?
...ogle.com');
ob_end_flush();flush();//really send content, can't change the order:1.ob buffer to normal buffer, 2.normal buffer to output
//continue do something on server side
ob_start();
sleep(5);//the user won't wait for the 5 seconds
echo 'for diyism';//user can't see this
file_put_contents('/tm...