June 2020
Intermediate to advanced
382 pages
11h 39m
English
Content preview from 40 Algorithms Every Programmer Should Know
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Breadth-first search
BFS works best when there is a concept of layers or levels of neighborhoods in the aGraph we are dealing with. For example, when the connections of a person in LinkedIn are expressed as a graph, there are first-level connections and then there are second-level connections, which directly translate to the layers.
The BFS algorithm starts from a root vertex and explores the vertices in the neighborhood vertices. It then moves to the next neighborhood level and repeats the process.
Let's look at a BFS algorithm. For that, let's first consider the following undirected graph:
Let's start by calculating the immediate neighborhood ...
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