What do you mean by "solve?" What is the solution supposed to be? Also, be careful with making a default argument be [] in Python. See this article.

Nov 19, 2018 · Yeah, this code only visits the nodes in a breadth-first fashion. This by itself is a useful thing to do for many applications (for example finding shortest paths in an unweighted graph) To actually return the BFS tree would require some additional work.

Jan 19, 2012 · How do you trace the path of a Breadth-First Search, such that in the following example: If searching for key 11, return the shortest list connecting 1 to 11. [1, 4, 7, 11]

Jul 6, 2015 · With this Python code you can maintain the depth of each node from the root by increasing the depth only after you encounter a node of new depth in the queue. queue = deque()

Nov 2, 2011 · Here's an O (N * max (vertex degree)) breadth-first search implementation. The bfs function generates nodes in breadth-first order, and for each a generator that can be used to trace a shortest path back to the start point.

Nov 1, 2011 · Let's say you wanted to implement a breadth-first search of a binary tree recursively. How would you go about it? Is it possible using only the call-stack as auxiliary storage?

Feb 17, 2020 · I am implementing a bidirectional BFS for a 2d maze problem in Python 3.7.3. Firstly, here is how I create the maze: for row in range(dim): # Add an empty array that will hold each cell ...

Apr 24, 2016 · Here's a hint. For BFS, a queue is most appropriate, while for DFS, you can use a stack.

Jun 24, 2012 · (Python 2.7)I need to print the bfs of a binary tree with a given preorder and inorder and a max lenght of the strings of preorder and inorder. I know how it works ...

May 19, 2018 · Why are you using breadth-first search on a binary search tree? The very definition of a binary search tree is that it provides bounds on depth-first search.