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What is the difference between “#!/usr/bin/env bash” and “#!/usr/bin/bash”?
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At least you have to know where env is :).
– ᐅdevrimbaris
Mar 22 '16 at 8:50
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How to find the kth smallest element in the union of two sorted arrays?
...uch i and j so that a[i-1] < b[j-1] < a[i] (or the other way round). Now since there are i elements in 'a' smaller than b[j-1], and j-1 elements in 'b' smaller than b[j-1], b[j-1] is the i + j-1 + 1 = kth smallest element. To find such i,j the algorithm does a dichotomic search on the arrays. ...
Is multiplication and division using shift operators in C actually faster?
...wer: Not likely.
Long answer:
Your compiler has an optimizer in it that knows how to multiply as quickly as your target processor architecture is capable. Your best bet is to tell the compiler your intent clearly (i.e. i*2 rather than i << 1) and let it decide what the fastest assembly/mach...
Razor If/Else conditional operator syntax [duplicate]
...vid Lively already answered by thanks :) At least can "close" the question now...
– B Z
Jan 5 '11 at 20:12
3
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How to check if an object implements an interface? [duplicate]
...ike this public void doSomething(Serializable serializableObject). You can now pass it any object that implements Serializable but using the serializableObject you only have access to the methods implemented in the object from the Serializable interface.
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How do you pass arguments to define_method?
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Thanks, I forgot about this. Fixed now.
– Jörg W Mittag
Oct 5 '09 at 8:19
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How does C compute sin() and other math functions?
...s code uses some numerical hacks I've never seen before, though for all I know they might be well-known among floating-point experts. Sometimes a few lines of code would take several paragraphs to explain. For example, these two lines
double t = (x * hpinv + toint);
double xn = t - toint;
are use...
Differences between Perl and PHP [closed]
I'm planning to learn Perl 5 and as I have only used PHP until now, I wanted to know a bit about how the languages differ from each other.
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What is the difference between MVC and MVVM? [closed]
...s from.
ViewModels hold a certain shape of data and commands, they do not know where the data, or code, comes from or how it is displayed.
Models hold the actual data (various context, store or other methods)
Controllers listen for, and publish, events. Controllers provide the logic that controls wh...
What is hashCode used for? Is it unique?
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The quote from the MSDN is now out-of-date. The MSDN is now not as explicit about the hash code not being unique.
– user34660
Dec 26 '17 at 22:11
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