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Determining complexity for recursive functions (Big O notation)
I have a Computer Science Midterm tomorrow and I need help determining the complexity of these recursive functions. I know how to solve simple cases, but I am still trying to learn how to solve these harder cases. These were just a few of the example problems that I could not figure out. Any help wo...
Custom toast on Android: a simple example
I'm new to Android programming. What is a simple example showing a custom toast notification on Android?
17 Answers
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Declaring a custom android UI element using XML
How do I declare an Android UI element using XML?
6 Answers
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Correct way to write line to file?
I'm used to doing print >>f, "hi there"
14 Answers
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YAML current date in rmarkdown
I'm wondering if there's a trick to put the current date in the YAML front-matter of a .rmd document to be processed by knitr and the rmarkdown package. I used to have the following line at the top of my wiki pages,
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Text Progress Bar in the Console [closed]
I wrote a simple console app to upload and download files from an FTP server using the ftplib.
31 Answers
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Converting RGB to grayscale/intensity
When converting from RGB to grayscale, it is said that specific weights to channels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
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How can I build XML in C#?
How can I generate valid XML in C#?
9 Answers
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How to pattern match using regular expression in Scala?
I would like to be able to find a match between the first letter of a word, and one of the letters in a group such as "ABC". In pseudocode, this might look something like:
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Generate C# class from XML
Can I generate a C# class from an XML file?
8 Answers
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