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What is pseudopolynomial time? How does it differ from polynomial time?
...ng TSP takes time O(n · n!), which isn't polynomial time.
These runtimes all refer to some variable n that tracks the size of the input. For example, in selection sort, n refers to the number of elements in the array, while in TSP n refers to the number of nodes in the graph. In order to standardi...
A variable modified inside a while loop is not remembered
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@AvinashYadav The problem isn't really related to while loop or for loop; rather the use of subshell i.e., in cmd1 | cmd2, cmd2 is in a subshell. So if a for loop is executed in a subshell, the unexpected/problematic behaviour will be exhibited.
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How do I view events fired on an element in Chrome DevTools?
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what if all events point to minified jquery i dont care about, how do i reach the function that uses that jquery.
– Muhammad Umer
Oct 1 '14 at 19:15
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Create Directory if it doesn't exist with Ruby
... ["foo/bar"]
Edit2: you do not have to use FileUtils, you may do system call (update from @mu is too short comment):
> system 'mkdir', '-p', 'foo/bar' # worse version: system 'mkdir -p "foo/bar"'
=> true
But that seems (at least to me) as worse approach as you are using external 'tool' wh...
How to select only the records with the highest date in LINQ
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@JasonL, no. The First() call should apply to the g.Order... expression (subquery).
– Mehrdad Afshari
Aug 29 '13 at 8:04
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How to select label for=“XYZ” in CSS?
...ute selectors, but more recent ones do. To support older browsers like IE6 and IE7, you'd have to use a class (well, or some other structural way), sadly.
(I'm assuming that the template {t _your_email} will fill in a field with id="email". If not, use a class instead.)
Note that if the value of t...
Rename a table in MySQL
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And yes you need the back tick ` and not the single quote ' I did the single quote from habit, and got the error, but maybe this will save someone else 10 seconds
– Paul
Feb 3 '14 at 1...
Devise form within a different controller
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As Andres says, the form calls helpers which are specified by Devise and so aren't present when you access a Devise form from a non-Devise controller.
To get around this, you need to add the following methods to the helper class of the controller you...
Using NSPredicate to filter an NSArray based on NSDictionary keys
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It should work - as long as the data variable is actually an array containing a dictionary with the key SPORT
NSArray *data = [NSArray arrayWithObject:[NSMutableDictionary dictionaryWithObject:@"foo" forKey:@"BAR"]];
NSArray *filtered = [data filteredArrayUsingPredicate:[N...
When should I use malloc in C and when don't I?
I understand how malloc() works. My question is, I'll see things like this:
6 Answers
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