# LeetCode - 1523. Count Odd Numbers in an Interval Range
### 題目網址：https://leetcode.com/problems/count-odd-numbers-in-an-interval-range/
###### tags: `LeetCode` `Easy` `數學`

/*
    -LeetCode format-
    Problem: 1523. Count Odd Numbers in an Interval Range
    Difficulty: Easy
    
    by Inversionpeter
*/



class Solution {
public:
    int countOdds(int low, int high) {
        return (high >> 1) + (high & 1) - (low >> 1);
    }
};