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Breadth First Search in C++

By Anirudh C V

We traverse the graph by Breadth First Search , find neighbours of each node and shortest distance of a node from its root node

Breadth First Search (BFS) algorithm traverses a graph in a breadthward motion and uses a queue to remember to get the next vertex to start a search, when a dead end occurs in any iteration.

steps:

1.First move horizontally and visit all the nodes of the current layer.

2.Move to the next layer

3.Repeat the step 1 and step 2 until all nodes are covered (only once).

Here we also find neighbours of each node and the shortest distance of a node from its root node.

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Submitted by Anirudh C V (AnirudhCV)

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