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Red black tree over avl tree
AVL and Red black trees are both self-balancing except Red and black color in the nodes. What's the main reason for choosing Red black trees instead of AVL trees? What are the applications of Red black trees?
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PowerShell: Setting an environment variable for a single command only
... Just a thought: Couldn't you just spawn a new PowerShell process, handing the scriptblock into it via the -Command parameter? That way you don't have to clean up the environment afterwards, since that will be contained in the child process. Although I am talking to a PowerShell MVP so this p...
Best way to do multi-row insert in Oracle?
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In Oracle, to insert multiple rows into table t with columns col1, col2 and col3 you can use the following syntax:
INSERT ALL
INTO t (col1, col2, col3) VALUES ('val1_1', 'val1_2', 'val1_3')
INTO t (col1, col2, col3) VALUES ('val2_1', 'val2_2', 'val2_3')
INTO t (col1, col2, col3) VALUES ...
How do I convert this list of dictionaries to a csv file?
...eader()
dict_writer.writerows(toCSV)
EDIT: My prior solution doesn't handle the order. As noted by Wilduck, DictWriter is more appropriate here.
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How do I detect IE 8 with jQuery?
... jQuery API Documentation. Check for Internet Explorer with $.browser.msie and then check its version with $.browser.version.
UPDATE: $.browser removed in jQuery 1.9
The jQuery.browser() method has been deprecated since jQuery 1.3 and is removed in 1.9. If needed, it is available as part of the...
How to pass command line arguments to a rake task
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Options and dependencies need to be inside arrays:
namespace :thing do
desc "it does a thing"
task :work, [:option, :foo, :bar] do |task, args|
puts "work", args
end
task :another, [:option, :foo, :bar] do |task, args|...
Passing enum or object through an intent (the best solution)
...stion, but everybody fails to mention that Enums are actually Serializable and therefore can perfectly be added to an Intent as an extra. Like this:
public enum AwesomeEnum {
SOMETHING, OTHER;
}
intent.putExtra("AwesomeEnum", AwesomeEnum.SOMETHING);
AwesomeEnum result = (AwesomeEnum) intent.get...
How do I get the SharedPreferences from a PreferenceActivity in Android?
...plication. I am inflating the settings via a xml file so that my onCreate (and complete class methods) looks like this:
7 ...
Django : How can I see a list of urlpatterns?
...r settings like this:
INSTALLED_APPS = (
...
'django_extensions',
...
)
And then, run this command in your terminal
./manage.py show_urls
For more information you can check the documentation.
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MySQL - force not to use cache for testing speed of query
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This will stop MySQL caching the results, however be aware that other OS and disk caches may also impact performance. These are harder to get around.
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