Shoutbox

bah sorry, i thought those where regular parenthesis My mistake

Edit:
Ok it's been a few years already since i solved these kind of problems for the last time, so i dunno if it's right

It works for 0:

floor(0) + floor(1/2) = 0

Now let's say it works for n

floor(n/2) + floor((n+1)/2) = n

then we can add 1

floor(n/2) + floor((n+1)/2) +1 = n+1

floor((n+2)/2) + floor((n+1)/2) = n+1

floor(((n+1)+1)/2) + floor((n+1)/2) = n+1

tadda