Exercise 4.9 question 4 done

still requires optimization for space usage and speed. Memoizing might be a good Idea!

Exercise 4.9 question 4 done

still requires optimization for space usage and speed. Memoizing might be a good Idea!

Exercise 4.9 question 3 done.

Optimised and removed a lot of un-needed code. Might still need to use Dijkstra’s Algorithm

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