How can I implement the A* algorithm in C++?

How can I implement the A* algorithm in C++?

To implement the A* algorithm in C++, you'll need to define a few key components: a priority queue, a graph representation, and a heuristic function.

What data structures should I use for the graph representation?

You can use an adjacency list or an adjacency matrix. An adjacency list is generally more space-efficient for sparse graphs.

Can you give me an example of the heuristic function?

Sure! A common heuristic for A* is the Euclidean distance between the current node and the target node.

How do I handle ties in the priority queue?

You can handle ties by using a secondary criterion, such as the order of node insertion or the total cost from the start node.