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How can building a heap be O(n) time complexity?
Can someone help explain how can building a heap be O(n) complexity?
17 Answers
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Apache Prefork vs Worker MPM
Looking at the Apache config file, I see Prefork and Worker MPM defined. What is the difference and which one is Apache using?
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What's default HTML/CSS link color?
I need its code representation, like #FFFFFF .
10 Answers
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Using Regular Expressions to Extract a Value in Java
I have several strings in the rough form:
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Posting a File and Associated Data to a RESTful WebService preferably as JSON
This is probably going to be a stupid question but I'm having one of those nights. In an application I am developing RESTful API and we want the client to send data as JSON. Part of this application requires the client to upload a file (usually an image) as well as information about the image.
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Should I use #define, enum or const?
In a C++ project I'm working on, I have a flag kind of value which can have four values. Those four flags can be combined. Flags describe the records in database and can be:
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PHP function to generate v4 UUID
So I've been doing some digging around and I've been trying to piece together a function that generates a valid v4 UUID in PHP. This is the closest I've been able to come. My knowledge in hex, decimal, binary, PHP's bitwise operators and the like is nearly non existant. This function generates a val...
How to install packages using pip according to the requirements.txt file from a local directory?
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12 Answers
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Delete all but the most recent X files in bash
Is there a simple way, in a pretty standard UNIX environment with bash, to run a command to delete all but the most recent X files from a directory?
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How do I catch a numpy warning like it's an exception (not just for testing)?
I have to make a Lagrange polynomial in Python for a project I'm doing. I'm doing a barycentric style one to avoid using an explicit for-loop as opposed to a Newton's divided difference style one. The problem I have is that I need to catch a division by zero, but Python (or maybe numpy) just makes i...