Top "Set" questions

A set is a collection in which no element is repeated, which may be able to enumerate its elements according to an ordering criterion (an "ordered set") or retain no order (an "unordered set").

Python Sets vs Lists

In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I would …

python list performance data-structures set
Converting a list to a set changes element order

Recently I noticed that when I am converting a list to set the order of elements is changed and is …

python set
How to store Query Result in variable using mysql

SET @v1 := SELECT COUNT(*) FROM user_rating; SELECT @v1 When I execute this query with set variable this error is …

mysql database variables set
JavaScript Array to Set

MSDN references JavaScript's Set collection abstraction. I've got an array of objects that I'd like to convert to a set …

javascript arrays set
OpenMP set_num_threads() is not working

I am writing a parallel program using OpenMP in C++. I want to control the number of threads in the …

c++ multithreading numbers set openmp
Difference between Iterator and Listiterator?

Iterator ite = Set.iterator(); Iterator ite = List.iterator(); ListIterator listite = List.listIterator(); We can use Iterator to traverse a Set …

java list iterator set listiterator
Python: how to join entries in a set into one string?

Basically, I am trying to join together the entries in a set in order to output one string. I am …

python list set python-2.7
How to "perfectly" override a dict?

How can I make as "perfect" a subclass of dict as possible? The end goal is to have a simple …

python inheritance dictionary get set
Simplest way to merge ES6 Maps/Sets?

Is there a simple way to merge ES6 Maps together (like Object.assign)? And while we're at it, what about …

javascript set ecmascript-6
Any implementation of Ordered Set in Java?

If anybody is familiar with Objective-C there is a collection called NSOrderedSet that acts as Set and its items can …

java collections set