A* finds the best path using past cost and a smart distance guess.
A* is like a kid in a corn maze. It counts muddy steps, then follows the path smelling most like popcorn.
You meet it in game maps and robot routes. It finds a solid path fast and skips many dead ends.
Graph Search
A* is a classic shortest-path method in Graph Search.
Heuristic Search
A* uses a heuristic guess to try the best-looking path first.
DP
A* keeps the cost so far, so it feels a bit like DP.
Agent
An Agent can use A* to find a route or solve a task.