Data Structures
A data structure is a way of organizing data in a fashion that allows particular properties of that data to be queried and/or updated efficiently.
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How is set() implemented?
I've seen people say that set objects in python have O(1) membership-checking. How are they implemented i
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How does the HyperLogLog algorithm work?
I've been learning about different algorithms in my spare time recently, and one that I came across which
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Why do we use arrays instead of other data structures?
As I was programming, I haven't seen an instance where an array is better for storing information than an
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Why is std::map implemented as a red-black tree?
Why is std::map implemented as a red-black tree? There are several balanced binary search trees (BSTs) out th
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Array versus linked-list
Why would someone want to use a linked-list over an array? Coding a linked-list is, no doubt, a bit more work
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What is the best way to implement nested dictionaries?
I have a data structure which essentially amounts to a nested dictionary. Let's say it looks like this:
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Python Sets vs Lists
In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I wou
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What is the difference between a map and a dictionary?
I know a map is a data structure that maps keys to values. Isn't a dictionary the same? What is the diffe
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Skip List vs. Binary Search Tree
I recently came across the data structure known as a skip list. It seems to have very similar behavior to a bi
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Tree data structure in C#
I was looking for a tree or graph data structure in C# but I guess there isn't one provided. An Extensive
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How can I implement a tree in Python?
I am trying to construct a General tree. Are there any built-in data structures in Python to implement it?
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What do I use for a max-heap implementation in Python?
Python includes the heapq module for min-heaps, but I need a max heap. What should I use for a max-heap imple
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What is C# analog of C++ std::pair?
I'm interested: What is C#'s analog of std::pair in C++? I found System.Web.UI.Pair class, but I&apo
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What are the differences between B trees and B+ trees?
In a b-tree you can store both keys and data in the internal and leaf nodes, but in a b+ tree you have to stor
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In Python, when to use a Dictionary, List or Set?
When should I use a dictionary, list or set? Are there scenarios that are more suited for each data type?
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What are the underlying data structures used for Redis?
I'm trying to answer two questions in a definitive list: What are the underlying data structures used fo
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How to Correctly Use Lists in R?
Brief background: Many (most?) contemporary programming languages in widespread use have at least a handful of
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What is the difference between tree depth and height?
This is a simple question from algorithms theory. The difference between them is that in one case you count nu
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Difference between binary tree and binary search tree
Can anyone please explain the difference between binary tree and binary search tree with an example?
