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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d
...e anything. There's no difference between OrderedDict([(i,i) for i in l]) and OrderedDict([('b', 'b'), ('a', 'a'), ('c', 'c'), ('aa', 'aa')]). The list comprehension is evaluated and creates the list and it is passed in; OrderedDict knows nothing about how it was created.
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How do I check the difference, in seconds, between two dates?
...ant to record when they were created, check against the current timestamp, and refresh as necessary.
5 Answers
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How does the NSAutoreleasePool autorelease pool work?
As I understand it, anything created with an alloc , new , or copy needs to be manually released. For example:
7 Answer...
How do I get the last four characters from a string in C#?
... Taking a couple of lines of code (which the OP already knew) and cramming it onto one line is not really the same thing as one expression.
– Buh Buh
Jun 20 '11 at 15:39
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How do I iterate over the words of a string?
...re's another way to extract tokens from an input string, relying only on standard library facilities. It's an example of the power and elegance behind the design of the STL.
#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <iterator&g...
How to calculate the number of occurrence of a given character in each row of a column of strings?
... Sorry I was unclear. I was actually responding to tim riffe and telling him that his function threw an error with the problem posed. He may have used your redefinition of the problem but he didn't say so.
– IRTFM
Sep 14 '12 at 20:14
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How to avoid reverse engineering of an APK file?
I am developing a payment processing app for Android, and I want to prevent a hacker from accessing any resources, assets or source code from the APK file.
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Efficient list of unique strings C#
...g a dictionary may be best inserting strings by writing dict[str] = false; and enumerating through the keys as a list. Is that a good solution?
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Measuring text width to be drawn on Canvas ( Android )
...a method which returns the width ( in pixels ) of a text to be drawn on an Android canvas using the drawText() method according to the Paint used to draw it?
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Automatically capture output of last command into a variable using Bash?
I'd like to be able to use the result of the last executed command in a subsequent command. For example,
22 Answers
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