Fixed buffer to buff in HW1 solutions.
Fixed buffer to buff in HW1 solutions.


Former-commit-id: 21c642b7d2a722fd17b6be750d0b7324f650c2b9 [formerly 0c17be70909e168e1a0f7235ff930d7f86665259]
Former-commit-id: 4c2888f7210426cd29353aaec81e4224b8bad48e
justinbois/bebi103_utils