Exercise 4.9 question 3 done.

Works okay for smaller grids but is a lot slower for larger grids. Might be worthwhile to use Dijkstra’s Algorithm

Exercise 4.9 question 2 done.
the files are split as the code snippets are considerably longer

Question 1 corrected
Question 4 was incorrect. removed it.
Question 5 done.
Question 6 done.

answer 4 was incorrect. removed it.
Question 5 done.

question 1 corrected and question 4 completed

question 1 corrected and question 4 completed

question 1 complete

question 1 complete