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Knight's Shortest Path on Chessboard
...competition, you must know
common algorithms including Dijkstra's.
A good starting point is reading
Introduction to Algorithms ISBN 0-262-03384-4.
Or you could try wikipedia, http://en.wikipedia.org/wiki/List_of_algorithms
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What is Node.js' Connect, Express and “middleware”?
...ting familiar with developing web apps in Node.js, Express is the place to start. To continue the Ruby analogy, Express is comparable to Sinatra. It's particularly great for creating JSON APIs for Ajax client-side apps. One thing I've found is that once an application hits a certain level of comple...
Confused about stdin, stdout and stderr?
...e file handles totally and open your own files for I/O.
When your process starts, it should already have these handles open and it can just read from and/or write to them.
By default, they're probably connected to your terminal device (e.g., /dev/tty) but shells will allow you to set up connection...
Git merge left HEAD marks in my files
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Absolutely start with 'git status' to see what you've got. If you aborted a merge (or had a merge aborted) and you've got conflicted files in the working directory then something went wrong. The Git status will tell you where you are....
Build a Basic Python Iterator
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The __iter__ returns the iterator object and is implicitly called
at the start of loops.
The __next__() method returns the next value and is implicitly called at each loop increment. This method raises a StopIteration exception when there are no more value to return, which is implicitly captured ...
SVN:externals equivalent in Git?
...g format:
Unique name of the repository
Relative path of the repository (started from the path of .gitlinks file)
Git repository which will be used in git clone command
Repository branch to checkout
Empty line or line started with # are not parsed (treated as comment).
Finally you have to update...
How can I maintain fragment state when added to the back stack?
...stack it does not re-create the fragment but re-uses the same instance and starts with onCreateView() in the fragment lifecycle, see Fragment lifecycle.
So if you want to store state you should use instance variables and not rely on onSaveInstanceState().
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How to find list of possible words from a letter matrix [Boggle Solver]
...mble. Some of you may know this game as Boggle. Essentially, when the game starts you get a matrix of letters like so:
35 A...
How do I run a Python program in the Command Prompt in Windows 7?
...he first executable file it finds on the PATH with that name is the one it starts.
Note that after changing this variable, there is no need to restart Windows, but only new instances of cmd.exe will have the updated PATH. You can type set PATH at the command prompt to see what the current value is....
Evenly space multiple views within a container view
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c) change the multiplier as follows: take the number of buttons + 1, and starting at the top, set the multiplier as buttonCountPlus1:1, and then buttonCountPlus1:2, and finally buttonCountPlus1:3. (I explain where I got this formula from in the old answer below, if you're interested).
5) Here's...