Update Makefile to turn on optimizations
Update Makefile to turn on optimizations

lanyudhy/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,lanyudhy/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II,HaliteChallenge/Halite-II,lanyudhy/Halite-II,HaliteChallenge/Halite-II