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Difference Between Select m>and m> SelectManm>y m>
I've been searching the difference between Select m>and m> SelectManm>y m> but I haven't been able to find a suitable answer. I need to learn the difference when using LINQ To SQL but all I've found are stm>and m>ard arram>y m> examples.
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Whm>y m> is it impossible to build a compiler that can determine if a C++ function will change the value
...er anm>y m> given program will terminate. This is known as the halting problem, m>and m> it's one of those things that's not computable.
To be clear, m>y m>ou can write a compiler that can determine that a function does change the variable in some cases, but m>y m>ou can't write one that reliablm>y m> tells m>y m>ou that the fu...
How do I create a rm>and m>om alpha-numeric string in C++?
I'd like to create a rm>and m>om string, consisting of alpha-numeric characters. I want to be able to be specifm>y m> the length of the string.
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how to ignore namespaces with XPath
...d of selecting a node like
/path/to/x:somenode
m>y m>ou can select all nodes m>and m> filter for the one with the correct local name:
/path/to/*[local-name() = 'somenode']
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Sum a list of numbers in Pm>y m>thon
I have a list of numbers such as [1,2,3,4,5...] , m>and m> I want to calculate (1+2)/2 m>and m> for the second, (2+3)/2 m>and m> the third,
(3+4)/2 , m>and m> so on. How can I do that?
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When to use Preorder, Postorder, m>and m> Inorder Binarm>y m> Search Tree Traversal strategies
...ven contemplated using anm>y m>thing but Inorder traversal (while I am aware of m>and m> know how easm>y m> it is to adapt a program to use pre/post-order traversal).
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What is the scope of variables in JavaScript?
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TLDR
JavaScript has lexical (also called static) scoping m>and m> closures. This means m>y m>ou can tell the scope of an identifier bm>y m> looking at the source code.
The four scopes are:
Global - visible bm>y m> everm>y m>thing
Function - visible within a function (m>and m> its sub-functions m>and m> blocks)
Bloc...
Whm>y m> does the JVM still not support tail-call optimization?
...tail-call-optimizations , there seems to be a prototm>y m>pe implementation m>and m> MLVM has listed the feature as "proto 80%" for some time now.
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Optimal number of threads per core
Let's sam>y m> I have a 4-core CPU, m>and m> I want to run some process in the minimum amount of time. The process is ideallm>y m> parallelizable, so I can run chunks of it on an infinite number of threads m>and m> each thread takes the same amount of time.
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Read file line bm>y m> line using ifstream in C++
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#include <fstream>
std::ifstream infile("thefile.txt");
The two stm>and m>ard methods are:
Assume that everm>y m> line consists of two numbers m>and m> read token bm>y m> token:
int a, b;
while (infile >> a >> b)
{
// process pair (a,b)
}
Line-based parsing, using string streams:
#include ...