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Convert string to Python class object?
... and multiple instances fo that class were made simultaneously at the same time. Will it cause problem, as this is a global variable.
– Alok Kumar Singh
Apr 9 at 11:01
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...ery significant when K is very small comparing to N.
EDIT2:
The expected time of this algorithm is pretty interesting, since in each iteration an insertion may or may not occur. The probability of the i'th number to be inserted to the queue is the probability of a random variable being larger than...
What should my Objective-C singleton look like? [closed]
...s to use the +(void)initialize method. From the documentation:
The runtime sends initialize to each class in a program exactly one time just before the class, or any class that inherits from it, is sent its first message from within the program. (Thus the method may never be invoked if the clas...
Remove all whitespace in a string
...make a variable to store the trans-table if you intend to do this multiple times.
– Shogan Aversa-Druesne
Dec 10 '18 at 19:12
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How can I find all of the distinct file extensions in a folder hierarchy?
... -e 's/.*\.//' | sed -e 's/.*\///' | sort -u
If you want totals (how may times the extension was seen):
find . -type f | sed -e 's/.*\.//' | sed -e 's/.*\///' | sort | uniq -c | sort -rn
Non-recursive (single folder):
for f in *.*; do printf "%s\n" "${f##*.}"; done | sort -u
I've based this ...
Convert number to month name in PHP
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The recommended way to do this:
Nowadays, you should really be using DateTime objects for any date/time math. This requires you to have a PHP version >= 5.2. As shown in Glavić's answer, you can use the following:
$monthNum = 3;
$dateObj = DateTime::createFromFormat('!m', $monthNum);
$mont...
How to pass parameters to ThreadStart method in Thread?
...ThreadStart) is that you can pass multiple parameters, and you get compile-time checking without needing to cast from object all the time.
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Rails and PostgreSQL: Role postgres does not exist
...e earlier, this is because postgresql does not have default role the first time it is set up. And we need to set that.
sovanlandy=# CREATE ROLE postgres LOGIN;
You must log in to your respective psql console to use this psql command.
Also noted that, if you already created the role 'postgre' but...
Add a properties file to IntelliJ's classpath
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I've done that about 50 times, I just did it again. My output isn't changing even though I changed the layout conversion pattern to something that would have been obvious. I'm wondering if another log4j.properties is in my classpath.
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typedef struct vs struct definitions [duplicate]
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@underscore_d: At the time, people recognized the value in having code which could work equally well as C and C++, and wanted to avoid creating needless barriers to compatibility. Sadly, such thinking is no longer fashionable.
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