Given a wall maze of 50x50, write two functions: One takes the maze as input and returns a positive integer; The other takes the integer and walk through the maze from left-top to right-bottom. At any time, it can only see if it's wall the nearest 4 positions. A testing lib in js is provided here. Using other languages is fine but you may need to write your testlib. It's fine if your lib keep accessibility to seen walls and your program relies on it —— It's anyway possible to store seen w...
