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How to specify the location with wget?
I need files to be downloaded to /tmp/cron_test/. My wget code is
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Append an object to a list in R in amortized constant time, O(1)?
If I have some R list mylist , you can append an item obj to it like so:
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How to compile a static library in Linux?
I have a question: How to compile a static library in Linux with gcc , i.e. I need to compile my source code into a file named out.a. Is it sufficient to simply compile with the command gcc -o out.a out.c ? I'm not quite familiar with gcc , hope anyone can give me a hand.
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What's the purpose of SQL keyword “AS”?
You can set table aliases in SQL typing the identifier right after the table name.
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Time complexity of Sieve of Eratosthenes algorithm
From Wikipedia:
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Get index of array element faster than O(n)
Given I have a HUGE array, and a value from it. I want to get index of the value in array. Is there any other way, rather then call Array#index to get it? The problem comes from the need of keeping really huge array and calling Array#index enormous amount of times.
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How to debug Lock wait timeout exceeded on MySQL?
In my production error logs I occasionally see:
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How to sort in-place using the merge sort algorithm?
I know the question is not too specific.
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How to perform .Max() on a property of all objects in a collection and return the object with maximu
I have a list of objects that have two int properties. The list is the output of another linq query. The object:
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Does JavaScript guarantee object property order?
If I create an object like this:
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