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How do I represent a hextile/hex grid in memory?

... 156 Amit Patel has posted an amazing page on this topic. It's so comprehensive and wonderful that ...
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Convert RGB to RGBA over white

I have a hex color, e.g. #F4F8FB (or rgb(244, 248, 251) ) that I want converted into an as-transparent-as-possible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so. ...
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Tricky Google interview question

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Rotating a two-dimensional array in Python

... Consider the following two-dimensional list: original = [[1, 2], [3, 4]] Lets break it down step by step: >>> original[::-1] # elements of original are reversed [[3, 4], [1, 2]] This list is passed into zip() using argument unpacking, so the zip call ends...
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How do I use floating-point division in bash?

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Convert a row of a data frame to vector

... 156 When you extract a single row from a data frame you get a one-row data frame. Convert it to a...
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Differences between Oracle JDK and OpenJDK

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Decreasing for loops in Python impossible?

... for n in range(6,0,-1): print n # prints [6, 5, 4, 3, 2, 1] share | improve this answer | follow | ...
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Current time formatting with Javascript

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Understanding dict.copy() - shallow or deep?

... 1010 By "shallow copying" it means the content of the dictionary is not copied by value, but just ...