Given two non-negative integers `low` and `high`. Return the count of odd numbers between `low` and `high` (inclusive).

Example 1:

    Input: low = 3, high = 7

    Output: 3

    Explanation: The odd numbers between 3 and 7 are [3,5,7].

Example 2:

    Input: low = 8, high = 10

    Output: 1

    Explanation: The odd numbers between 8 and 10 are [9].

Constraints:

- `0 <= low <= high <= 10^9`