To compile: For the N^2 version, go into the Naive folder and run make to compile program 1 and program 2. For the Barnes-Hut version, go into either Serial/Parallel directory, and run make which should create a BarnesHut executable. Then input the arguments as stated in the following order:
gnumBodies: the number of bodies
numSteps: the number of time steps in the simulation
far: the distance used to decide when to approximate (Barnes-Hut programs only)
numWorkers: the number of workers (parallel version only)
An extra argument flag has been added to the end for the BarnesHut programs, -gui which will start the graphical interface to visualise the output.
Dependencies: Boost or something, gnuplot, OpenMP (for parallel directory).