Write another definition of function sumOdds(n) which
produces the sum of the odd integers that are less than
or equal to n. But this time do not assume that n
is odd, only assume that it is positive.
For example, sumOdds(4) = 1 + 3 = 4, and
sumOdds(8) = 1 + 3 + 5 + 7 = 16. This new sumOdds must still
work for odd integers too. For example, sumOdds(9) = 1 + 3 + 5 + 7 + 9 = 25.
(Hint. If n is even, just compute
sumOdds(n-1).)