大约有 13,909 项符合查询结果（耗时：0.0268秒） [XML]
Reading specific lines only
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enumerate(x) uses x.next, so it doesn't need the entire file in memory.
– Alok Singhal
Jan 17 '10 at 17:46
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Finding duplicates in O(n) time and O(1) space
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end if
end for
The first loop permutes the array so that if element x is present at least once, then one of those entries will be at position A[x].
Note that it may not look O(n) at first blush, but it is - although it has a nested loop, it still runs in O(N) time. A swap only occurs if the...
Design RESTful query API with a long list of query parameters [closed]
...ook - whatever the problem domain dictates. However, an endpoint can also expose a different resource - for example search results.
Consider the following example:
GET /books?author=AUTHOR
POST /books
PUT /books/ID
DELETE /books/ID
This is a typical REST CRUD. However what if we added:
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How to select a CRAN mirror in R
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You should either get a window with a list of repositories or a text menu with some options. But if that is not appearing, you can always specify the mirror from where to download the packages yourself by using repos parameter. By doing that, R will not ask you anymore about the repository....
Python: access class property from string [duplicate]
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x = getattr(self, source) will work just perfectly if source names ANY attribute of self, including the other_data in your example.
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css selector to match an element without attribute x [duplicate]
I'm working on a CSS file and find the need to style text input boxes, however, I'm running into problems. I need a simple declaration that matches all these elements:
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How to split (chunk) a Ruby array into parts of X elements? [duplicate]
... Nice. I used something similar to foo.each_slice(3).each_with_index { |f, i| puts "#{f}, #{i}" } in order to work through the array in slices (or "chunks").
– user664833
Sep 14 '12 at 19:08
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Difference between parameter and argument [duplicate]
...if you will.
That being said, they are often used interchangeably, their exact use depending on different programming languages and their communities. For example, I have also heard actual parameter etc.
So here, x and y would be formal parameters:
int foo(int x, int y) {
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}
Whereas here...
How to move up a directory with Terminal in OS X
...any times as you want to back up through multiple parent directories. For example, cd ../../Applications would take you to Macintosh HD/Applications
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Remove and Replace Printed items [duplicate]
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Just use CR to go to beginning of the line.
import time
for x in range (0,5):
b = "Loading" + "." * x
print (b, end="\r")
time.sleep(1)
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