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How does a Breadth-First Search work when looking for Shortest Path?
I've done some research, and I seem to be missing one small part of this algorithm. I understand how a Breadth-First Search works, but I don't understand how exactly it will get me to a specific path, as opposed to just telling me where each individual node can go. I guess the easiest way to explain...
How can I randomize the lines in a file using standard tools on Red Hat Linux?
How can I randomize the lines in a file using standard tools on Red Hat Linux?
11 Answers
...
Set time to 00:00:00
...for use with AM/PM), and Calendar.HOUR_OF_DAY uses 0-23.
To quote the Javadocs:
public static final int HOUR
Field number for get and set indicating
the hour of the morning or afternoon. HOUR is used for the 12-hour
clock (0 - 11). Noon and midnight are represented by 0, not by 12.
E...
Can you animate a height change on a UITableViewCell when selected?
...s...
[tableView beginUpdates];
[tableView endUpdates];
You will find it doesn't do a full reload but is enough for the UITableView to know it has to redraw the cells, grabbing the new height value for the cell.... and guess what? It ANIMATES the change for you. Sweet.
I have a more detailed expl...
Android: Scale a Drawable or background image?
...eping its aspect ratio) to the space allocated when the page gets created. Does anyone have an idea how to do this?
13 Answ...
Python: split a list based on a condition?
...for x in mylist if x not in goodvals]
is there a more elegant way to do this?
That code is perfectly readable, and extremely clear!
# files looks like: [ ('file1.jpg', 33L, '.jpg'), ('file2.avi', 999L, '.avi'), ... ]
IMAGE_TYPES = ('.jpg','.jpeg','.gif','.bmp','.png')
images = [f for f in f...
Why don't Java Generics support primitive types?
Why do generics in Java work with classes but not with primitive types?
6 Answers
6
...
Auto-loading lib files in Rails 4
...lass Foo
end
in lib/foo/bar.rb:
class Foo::Bar
end
if you really wanna do some monkey patches in file like lib/extensions.rb, you may manually require it:
in config/initializers/require.rb:
require "#{Rails.root}/lib/extensions"
P.S.
Rails 3 Autoload Modules/Classes by Bill Harding.
And...
django syncdb and an updated model
... have recently updated my model, added a BooleanField to it however when I do python manage.py syncdb , it doesn't add the new field to the database for the model. How can I fix this ?
...
Git push/clone to new server
...ote add origin git@github.com:foo/bar.git
git push origin master
See the docs for git push -- you can set a remote as the default remote for a given branch; if you don't, the name origin is special. Just git push alone will do the same as git push origin thisbranch (for whatever branch you're on)....