Recently I have conversation with a colleague about what would be the optimal way to convert List to Map in Java and if there any specific benefits of doing so. I want to know optimal conversion approach and would really appreciate if any one can guide me. Is this good approach: List<Object[]> results; Map<Integer, String> … Read more
I was looking for a tree or graph data structure in C#, but I guess there isn’t one provided. An Extensive Examination of Data Structures Using C# 2.0 a bit about why. Is there a convenient library which is commonly used to provide this functionality? Perhaps through a strategy pattern to solve the issues presented … Read more
Does VBA have dictionary structure? Like key<>value array? 11 Answers 11
I am trying to construct a General tree. Are there any built-in data structures in Python to implement it? 16 Answers 16
I’m interested: What is C#’s analog of std::pair in C++? I found System.Web.UI.Pair class, but I’d prefer something template-based. Thank you! 14 Answers 14
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 store the data in the leaf nodes only. Is there any advantage of doing the above in a b+ tree? Why not use b-trees instead of b+ trees everywhere, as intuitively … Read more
When should I use a dictionary, list or set? Are there scenarios that are more suited for each data type? 13 Answers 13
I’m trying to answer two questions in a definitive list: What are the underlying data structures used for Redis? And what are the main advantages/disadvantages/use cases for each type? So, I’ve read the Redis lists are actually implemented with linked lists. But for other types, I’m not able to dig up any information. Also, if … Read more
Brief background: Many (most?) contemporary programming languages in widespread use have at least a handful of ADTs [abstract data types] in common, in particular, string (a sequence comprised of characters) list (an ordered collection of values), and map-based type (an unordered array that maps keys to values) In the R programming language, the first two … Read more
Python includes the heapq module for min-heaps, but I need a max heap. What should I use for a max-heap implementation in Python? 18 Answers 18
