I've seen people say that set objects in python have O(1) membership-checking. How are they implemented i
How can I print a binary tree in Java so that the output is like: 4 / \ 2 5 My node: public cla
I've been learning about different algorithms in my spare time recently, and one that I came across which
I have a Hashmap in Java like this: private Map<String, Integer> team1 = new HashMap<String, Integer
In C, I know I can dynamically allocate a two-dimensional array on the heap using the following code: int** s
I need a Stack data structure for my use case. I should be able to push items into the data structure and I on
As I was programming, I haven't seen an instance where an array is better for storing information than an
Why is std::map implemented as a red-black tree? There are several balanced binary search trees (BSTs) out th
Why would someone want to use a linked-list over an array? Coding a linked-list is, no doubt, a bit more work
I have a data structure which essentially amounts to a nested dictionary. Let's say it looks like this:
In Python, which data structure is more efficient/speedy? Assuming that order is not important to me and I wou
I know a map is a data structure that maps keys to values. Isn't a dictionary the same? What is the diffe
I recently came across the data structure known as a skip list. It seems to have very similar behavior to a bi
I'm sure there's a good reason, but could someone please explain why the java.util.Set interface lac
Recently I have conversation with a colleague about what would be the optimal way to convert List to Map in Ja
I was looking for a tree or graph data structure in C# but I guess there isn't one provided. An Extensive
I am trying to construct a General tree. Are there any built-in data structures in Python to implement it?
Python includes the heapq module for min-heaps, but I need a max heap. What should I use for a max-heap imple
I'm interested: What is C#'s analog of std::pair in C++? I found System.Web.UI.Pair class, but I&apo