Description does not specify whether the surnames can contain ! ! If such cases occur, then tests should invalidate these kinds of solutions

Ive managed to pass it, but there is a few tests that i ran myself outside Codewars and my algorithm doesnt work. Its a simple case with a two rows dead end in labyrinth. If its already reported, then im sorry for bother.

C translation

My code works for the sample tests. However it won't complete in time when trying the hidden tests.

I thought that mazes without an exit could be the problem, so I wrote some code to check if the outside wall has a hole in it to escape the maze.
It still won't complete within the 12 seconds.

Any suggestions?