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How many characters can UTF-8 encode?
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UTF-8 does not use one byte all the time, it's 1 to 4 bytes.
The first 128 characters (US-ASCII) need one byte.
The next 1,920 characters need two bytes to encode. This covers the remainder of almost all Latin alphabets, and also Greek...
must appear in the GROUP BY clause or be used in an aggregate function
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@Sebas It can be done without joining on MAX (see answer by @ypercube, there is also another solution in my answer) but not the way you do it. Check expected output.
– zero323
Nov 1 '13 at 9:08
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Find UNC path of a network drive?
...ath Copy, which is free and you can practically get any path you want with one click:
https://pathcopycopy.github.io/
Here is a screenshot demonstrating how it works. The latest version has more options and definitely UNC Path too:
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How to define an enumerated type (enum) in C?
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Declaring an enum variable is done like this:
enum strategy {RANDOM, IMMEDIATE, SEARCH};
enum strategy my_strategy = IMMEDIATE;
However, you can use a typedef to shorten the variable declarations, like so:
typedef enum {RANDOM, IMMEDIATE, SEARCH} strat...
RAII and smart pointers in C++
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// No need to close it - destructor will do that for us
This cannot be done in Java since there's no guarantee when the object will be destroyed, so we cannot guarantee when a resource such as file will be freed.
Onto smart pointers - a lot of the time, we just create objects on the stack. For i...
design a stack such that getMinimum( ) should be O(1)
This is one of an interview question. You need to design a stack which holds an integer value such that getMinimum() function should return the minimum element in the stack.
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How to mock an import
... so that the B import is an ImportError again? I tried sys.modules['B'] = None but it doesn't seem to work.
– audiodude
Aug 20 '19 at 17:50
4
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Are inline virtual functions really a non-sense?
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There is one category of virtual functions where it still makes sense to have them inline. Consider the following case:
class Base {
public:
inline virtual ~Base () { }
};
class Derived1 : public Base {
inline virtual ~Derived1...
C: differences between char pointer and array [duplicate]
...current scope's stack space, but that references memory elsewhere (in this one, "now is the time" is stored elsewhere in memory, commonly a string table).
Also, note that because the data belonging to the second definition (the explicit pointer) is not stored in the current scope's stack space, it ...
Scala downwards or decreasing for loop?
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+1 for first one one, but second one is evil -- less readable than by and IMO shouldn't be used under any circumstances
– om-nom-nom
Apr 13 '12 at 20:14
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