BFS - Maze Solving Algorithm

What happens when the frontier is empty in the maze-solving algorithm?

• The search continues until there are no more possible moves.

• The algorithm restarts from the beginning.

• The maze is considered unsolvable.

• The search terminates immediately.

What does the reached set do in the maze-solving algorithm?

• It prevents revisiting the same location.

• It helps in finding the shortest path.

• It stores the maze layout.

• It counts the number of moves made.

What is the return value if no solution is found in the maze-solving algorithm?

• The algorithm returns success.

• The algorithm returns failure.

• The algorithm returns an error code.

• The algorithm returns a warning.

In the example maze, what does 'G' represent?

• G represents the Goal position.

• G represents the Start position.

• G represents a Wall in the maze.

• G represents a Path in the maze.

What is the relationship between UCS and Best-First Search?

• UCS is a special case of Best-First Search where the priority is based on path cost.

• UCS is a type of Best-First Search that uses a heuristic function.

• UCS and Best-First Search are completely unrelated algorithms.

• UCS is a more advanced version of Best-First Search that incorporates multiple heuristics.

What should be done if the new position hasn't been visited?

• Mark it as visited (add to reached) and add it to the frontier for future exploration.

• Ignore it and move on to the next position.

• Mark it as unvisited and remove it from the frontier.

• Add it to the visited list without further action.

What does FIFO stand for in the context of the frontier?

• First-In-First-Out

• First-In-Last-Out

• First-Out-First-In

• First-Only-In

What is the purpose of the frontier in the maze-solving algorithm?

• The frontier is a FIFO queue that keeps track of nodes to be explored.

• The frontier is a data structure that stores the final path to the exit.

• The frontier is a random selection of nodes to be ignored during exploration.

• The frontier is a stack that prioritizes the most recently added nodes.

What is the return value of the UNIFORM-COST-SEARCH function if a solution is found?

• It returns a solution node.

• It returns the cost of the solution.

• It returns the path to the solution.

• It returns an error message.

What does the algorithm check after starting with the initial node?

• It checks if the initial node is the goal using problem.IS-GOAL(node.STATE).

• It verifies the initial node's connections to other nodes.

• It calculates the heuristic value of the initial node.

• It initializes the search space for the algorithm.