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Portal Maze

Input: A string of the maze including
> exactly one "a" as your start;
> exactly one "b" as the goal;
> "_"s as floors you can walk on;
> "|"s as walls you can't pass;
> "h"s as hammers that allow you to break one wall per hammer;
> "p"s as portals that allow you to teleport from one to another.
Output: Return true if you can reach the "b" after starting from the "a", else return false.
Constraint: Input length = 7