While queue: # Creating loop to visit each node Queue = #Initialize a queue def bfs(visited, graph, node): #function for BFS Now, we will see how the source code of the program for implementing breadth first search in python.Ĭonsider the following graph which is implemented in the code below: Mark and enqueue all (unvisited) neighbors of uīFS implementation in Python (Source Code) The pseudocode for BFS in python goes as below: Many times, a graph may contain two different disconnected parts and therefore to make sure that we have visited every vertex, we can also run the BFS algorithm at every node.
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