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How to sort in-place using the merge sort algorithm?
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Knuth left this as an exercise (Vol 3, 5.2.5). There do exist in-place merge sorts. They must be implemented carefully.
First, naive in-place merge such as described here isn't the right solution. It downgrades the performance to O(N2).
The idea is to sort part of the array while using the res...
What is the difference between BIT and TINYINT in MySQL?
...uld be added that TINYINT and BIT(1) do not differ in their Storage Requirements and that BOOL and BOOLEAN are synonyms for TINYINT(1) Numeric Type Overview.
– Timo Strotmann
Jul 11 '18 at 17:18
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Should you ever use protected member variables?
Should you ever use protected member variables? What are the the advantages and what issues can this cause?
10 Answers
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Cosmic Rays: what is the probability they will affect a program?
...ss than the risk of cosmic rays" affecting the program, and it occurred to me that I didn't have the faintest idea what that probability is.
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How to return smart pointers (shared_ptr), by reference or by value?
Let's say I have a class with a method that returns a shared_ptr .
2 Answers
2
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Simple logical operators in Bash
... commands are executed in a separate subprocess, so any redirection, assignment, etc. performed inside the parentheses has no effect outside the parentheses.
With a leading dollar sign, $(…) is a command substitution: there is a command inside the parentheses, and the output from the command is ...
How do I write a custom init for a UIView subclass in Swift?
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The init(frame:) version is the default initializer. You must call it only after initializing your instance variables. If this view is being reconstituted from a Nib then your custom initializer will not be called, and instead the init?(...
Change old commit message on Git
I was trying to edit an old commit message as explained here .
5 Answers
5
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When do I need to use AtomicBoolean in Java?
...g used to ensure that one and only one thread will invoke the initialize() method. Obviously initialized being true doesn't mean that initialization has definitely completed in this case, so maybe a slightly different term would be better here. Again, it depends on what it's being used for.
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