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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 do you use window.postMessage across domains?
...eems like the point of window.postMessage is to allow safe communication between windows/frames hosted on different domains, but it doesn't actually seem to allow that in Chrome.
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Removing item from vector, while in C++11 range 'for' loop?
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No, you can't. Range-based for is for when you need to access each element of a container once.
You should use the normal for loop or one of its cousins if you need to modify the container as you go along, access an element more than once, or ot...
Spring: Why do we autowire the interface and not the implemented class?
...mplementation is annotated with @Component with Spring's component scan enabled, Spring framework can find out the (interface, implementation) pair. If component scan is not enabled, then you have to define the bean explicitly in your application-config.xml (or equivalent spring configuration file)....
scp or sftp copy multiple files with single command
...emote to local:
$ scp your_username@remote.edu:/some/remote/directory/\{a,b,c\} ./
Copy multiple files from local to remote:
$ scp foo.txt bar.txt your_username@remotehost.edu:~
$ scp {foo,bar}.txt your_username@remotehost.edu:~
$ scp *.txt your_username@remotehost.edu:~
Copy multiple files fr...
Cost of exception handlers in Python
...ted replacing a (very cheap) if statement in Python code with a try/except block to improve performance.
3 Answers
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How to terminate a window in tmux?
...e a window in tmux? Like the Ctrl a k shortcut in screen with Ctrl a being the prefix.
10 Answers
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How do I move a redis database from one server to another?
...hat instance as my new redis server. If it were MySQL, I would export the DB from the old server and import it into the new server. How should I do this with redis?
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How can I make grep print the lines below and above each matching line? [duplicate]
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grep's -A 1 option will give you one line after; -B 1 will give you one line before; and -C 1 combines both to give you one line both before and after, -1 does the same.
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How to escape regular expression special characters using javascript? [duplicate]
...pecial characters using java script.How can i achieve this?Any help should be appreciated.
3 Answers
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