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If you had studied longer, would your overall scores get any better? One way of answering this question is by having data on how long you studied for and what scores you got. We can then try to see if there is a pattern in that data, and if in...
Cássia Sampaio
Graphs are one of the most useful data structures. They can be used to model practically everything - object relations and networks being the most common ones. An image can be represented as a grid-like graph of pixels, and sentences can be represented as graphs of words. Graphs are used...
Anđela Niketić
Originating from mathematics, graphs are now widely used data structures in Computer Science. One of the first problems we encounter when constructing any algorithm regarding Graph processing or traversal is how we represent the graph and then, how to traverse that representation. Graph traversal is not a trivial problem, and...
Graphs in Python can be represented in several different ways. The most notable ones are adjacency matrices, adjacency lists, and lists of edges. In this guide, we'll cover all of them. When implementing graphs, you can switch between these types of representations at your leisure. First of all, we'll quickly...
Dimitrije Stamenic
A graph is a great tool for modeling relationships between objects. Graphs can model complex relationships between any number of objects in a system, which makes them ideal for representing interactions between concepts/items in areas like physics, economics, chemistry. Thanks to constantly increasing computational power, you can manipulate graphs...
Kruskal's algorithm is one of the three most famous algorithms for finding a minimum spanning tree (MST) in a graph. MSTs are widely used to calculate optimal paths in a lot of different fields. From a post-office calculating the optimal path for a postman that needs to cover a certain...
Reversing a string isn't uncommon in development, and fairly popular for entry-level interview questions. With JavaScript, we have many ways to reverse a string. We can use a combination of string's split() method as well as array's reverse() and join() methods (since strings are ultimately arrays of characters). We can...
Guest Contributor
Sorting is one of the fundamental techniques used in solving problems, especially in those related to writing and implementing efficient algorithms. Usually, sorting is paired with searching - meaning we first sort elements in the given collection, then search for something within it, as it is generally easier to search...
Branko Ilic
In this guide, we will explore Heap Sort - the theory behind it and how to implement Heap Sort in JavaScript. We will start off with what data structure it's based on (massive foreshadow here: it's a heap!), how to perform operations on that data structure, and how that data...
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