:confetti_ball: Added .gitattributes
algs4
alsg4
assignment 4
kdtrees
fixed insert and contains method
added code to set up RectHV for each node
working kdtree
kdtree
optimized few methods; improved code readability
optimized few methods; improved code readability
Merge remote-tracking branch 'algs4/master'
Move algs4 files into coursera