[amp_mcq option1=”TRUE” option2=”nan” option3=”nan” option4=”nan” correct=”option1″]
The correct answer is: True.
Bidirectional search is a search algorithm that can be used to find a path between two nodes in a graph. It works by searching from the start node and the goal node simultaneously, and then merging the two paths when they meet. This can often be faster than searching from a single node, because it can avoid exploring dead ends.
For example, consider the following graph:
If we were to search for a path from node A to node E using bidirectional search, we would first explore the edges that are connected to node A. We would then explore the edges that are connected to the nodes that we just explored, and so on. Once we reach node E, we would then backtrack along the path that we found, and merge it with the path that we found from node E to node A.
Bidirectional search is a relatively simple algorithm, but it can be very effective in finding paths in large graphs. It is often used in pathfinding algorithms, such as A*.
The other option, “False”, is incorrect because bidirectional search does not always reduce the time complexity. In some cases, it can actually increase the time complexity. This is because bidirectional search requires two separate searches to be performed, and each search can take a long time. However, in most cases, bidirectional search will reduce the time complexity.