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How does a Breadth-First Search work when looking for Shortest Path?

... @Shashank If we are not maintaining distance then how would we know the shortest distance,please explain more. – Gaurav Sehgal Apr 12 '15 at 19:17 12 ...
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Deleting DataFrame row in Pandas based on column value

... how to do that if we don't know the column name? – Piyush S. Wanare Jul 3 '18 at 13:20 ...
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Creating a textarea with auto-resize

... It does! Made a jsfiddle for ya: jsfiddle.net/CbqFv It now works in Chrome, Firefox, and IE8 - although it is a little glitchy in IE8. As you increase or decrease number of lines it freaks out a little. As you might have seen in the autoresize plugin for jQuery, they work around ...
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how to calculate binary search complexity

... formula this would be this: 1 = N / 2x multiply by 2x: 2x = N now do the log2: log2(2x)    = log2 N x * log2(2) = log2 N x * 1         = log2 N this means you can divide log N times until you have everything divided. Which means you have to divide log N ("do the bin...
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Conda: Installing / upgrading directly from github

... There's better support for this now through conda-env. You can, for example, now do: name: sample_env channels: dependencies: - requests - bokeh>=0.10.0 - pip: - "--editable=git+https://github.com/pythonforfacebook/facebook-sdk.git@8c0d34...
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arrow operator (->) in function heading

...ifier ( argument-declarations... ) -> return_type They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets you describe type of an expression. So you might want to derive the return type from the argument...
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How can I install pip on Windows?

...e, C:\Python27\Scripts) to your path (Start / Edit environment variables). Now you should be able to run pip from the command line. Try installing a package: pip install httpie There you go (hopefully)! Solutions for common problems are given below: Proxy problems If you work in an office, you ...
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Eclipse error “ADB server didn't ACK, failed to start daemon”

...sk manager, which has adb.exe process and end (kill) that process Step 2: Now, close the eclipse, which is currently running on my computer. Step 3: Again, restart eclipse then solved that problem. For those using OS X killall adb For those using Windows adb kill-server should do the tric...
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Learning Ruby on Rails

As it stands now, I'm a Java and C# developer. The more and more I look at Ruby on Rails, the more I really want to learn it. ...
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What is std::string::c_str() lifetime?

...use the strings are not modified while in that scope. (However, we don't know what use_foo() or ~Foo() might be doing with those values; if they copy the strings elsewhere, then they should do a true copy, and not just copy the char pointers.) ...