#### QUESTION:

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
```

#### EXPLANATION:

这道题目比较简单, 其实只要找到规律即可.

#### SOLUTION:

```
class Solution {
fun countOdds(low: Int, high: Int): Int {
return if ((high - low + 1) % 2 == 0) {
(high - low + 1) / 2
} else {
if (high % 2 != 0 && low % 2 != 0) {
(high - low) / 2 + 1
} else {
(high - low) / 2
}
}
}
}
```