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Using scanf() in C++ programs is faster than using cin?
I don't know if this is true, but when I was reading FAQ on one of the problem providing sites, I found something, that poke my attention:
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What is the difference between conversion specifiers %i and %d in formatted IO functions (*printf /
...hat is the difference between %d and %i when used as format specifiers in printf ?
4 Answers
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Renaming columns in pandas
I have a DataFrame using pandas and column labels that I need to edit to replace the original column labels.
27 Answers
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Computed / calculated / virtual / derived columns in PostgreSQL
...reSQL support computed / calculated columns, like MS SQL Server? I can't find anything in the docs, but as this feature is included in many other DBMSs I thought I might be missing something.
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Design Patterns: Abstract Factory vs Factory Method
... need to be changed only the Simple Factory Class)
Factory Method
Contains one method to produce one type of product related to its type. (It is better than a Simple Factory because the type is deferred to a sub-class.)
Abstract Factory
Produces a Family of Types that are related. It is noti...
How do I use valgrind to find memory leaks?
How do I use valgrind to find the memory leaks in a program?
4 Answers
4
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Authenticate Jenkins CI for Github private repository
I'd like for Jenkins to automagically fetch data from my private repository hosted on Github.
But I have no idea how to accomplish that task.. Tried the documentation, generating ssh-key for jenkins user and all what I can see is: "unable to clone the repo". I've checked URLs - they are valid.
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Returning IEnumerable vs. IQueryable
What is the difference between returning IQueryable<T> vs. IEnumerable<T> , when should one be preferred over the other?
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Meteor test driven development [closed]
I don't see how to do test driven development in meteor.
13 Answers
13
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What is the logic behind the “using” keyword in C++?
What is the logic behind the "using" keyword in C++?
1 Answer
1
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