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Why is std::map implemented as a red-black tree?
...1) or O(log n) because the main operation is already O(log n). even after all the slightly extra work that AVL trees do results in a more tightly balanced tree which leads to slightly faster lookups. so it is a perfectly valid tradeoff and does not make AVL trees inferior to red-black trees.
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How to change the style of the title attribute inside an anchor tag?
... answered Jan 6 '10 at 5:56
vallivalli
5,07122 gold badges1717 silver badges88 bronze badges
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How do you handle multiple submit buttons in ASP.NET MVC Framework?
...e submit button issue based heavily on the post and comments from Maarten Balliauw.
[AttributeUsage(AttributeTargets.Method, AllowMultiple = false, Inherited = true)]
public class MultipleButtonAttribute : ActionNameSelectorAttribute
{
public string Name { get; set; }
public string Argument...
Using Regular Expressions to Extract a Value in Java
... answered Oct 25 '08 at 21:47
Allain LalondeAllain Lalonde
83.5k6666 gold badges172172 silver badges234234 bronze badges
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How can I add a column that doesn't allow nulls in a Postgresql database?
... postgres doc offline by doing man ALTER_TABLE :)
– allan.simon
Oct 18 '15 at 19:49
@allan.simon I've never used Post...
Reverting single file in SVN to a particular revision
...
This probably does not actually do what the question asker wanted. Using this, the working copy is clean and cannot be committed AS IS, and an "svn update" without a version number specified will retrieve the latest, unwanted version.
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How to delete a remote tag?
...r a branch and for a tag. If you want to make sure that you cannot accidentally remove the branch instead of the tag, you can specify full ref which will never delete a branch:
git push origin :refs/tags/tagname
If you also need to delete the local tag, use:
git tag --delete tagname
Background
Pu...
What is the best way to paginate results in SQL Server
...E OrderDate >= '1980-01-01'
...which may seem inefficient, but is actually pretty performant, assuming all indexes etc. are properly set up.
Next, to get actual results back in a paged fashion, the following query would be most efficient:
SELECT *
FROM ( SELECT ROW_NUMBER() OVER ( ORDE...
How to write trycatch in R
...rn value in case of warning
return(NULL)
},
finally={
# NOTE:
# Here goes everything that should be executed at the end,
# regardless of success or error.
# If you want more than one expression to be executed, then you
# need to wr...
JavaScript code to stop form submission
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Just use a simple button instead of a submit button. And call a JavaScript function to handle form submit:
<input type="button" name="submit" value="submit" onclick="submit_form();"/>
Function within a script tag:
function submit_form() {
if (conditions) {
docu...