Using the floor function, simplify ⌊n/2⌋+⌊(n+1)/2⌋\lfloor n/2 \rfloor + \lfloor (n+1)/2 \rfloor⌊n/2⌋+⌊(n+1)/2⌋ for integer nnn.
nnn
n+1n + 1n+1
n−1n - 1n−1
Depends on parity of nnn