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What is a “cache-friendly” code?
What is the difference between " cache unfriendly code " and the " cache friendly " code?
9 Answers
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Getting SyntaxError for print with keyword argument end=' '
I have this python script where I need to run gdal_retile.py ,
but I get an exception on this line:
14 Answers
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Add up a column of numbers at the Unix shell
Given a list of files in files.txt , I can get a list of their sizes like this:
20 Answers
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Java ArrayList - how can I tell if two lists are equal, order not mattering?
I have two ArrayList s of type Answer (self-made class).
18 Answers
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Does Python have a ternary conditional operator?
If Python does not have a ternary conditional operator, is it possible to simulate one using other language constructs?
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What does “O(1) access time” mean?
I have seen this term "O(1) access time" used to mean "quickly" but I don't understand what it means. The other term that I see with it in the same context is "O(n) access time". Could someone please explain in a simple way what these terms mean?
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How to sum a variable by group
I have a data frame with two columns. First column contains categories such as "First", "Second", "Third", and the second column has numbers that represent the number of times I saw the specific groups from "Category".
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How can two strings be concatenated?
How can I concatenate (merge, combine) two values?
For example I have:
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How do I include a pipe | in my linux find -exec command?
This isn't working. Can this be done in find? Or do I need to xargs?
6 Answers
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Static constant string (class member)
I'd like to have a private static constant for a class (in this case a shape-factory).
11 Answers
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