# 1523. Count Odd Numbers in an Interval Range

## Description

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

## Solutions

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

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

• class Solution:
def countOdds(self, low: int, high: int) -> int:
return ((high + 1) >> 1) - (low >> 1)


• func countOdds(low int, high int) int {
return ((high + 1) >> 1) - (low >> 1)
}

• function countOdds(low: number, high: number): number {
return ((high + 1) >> 1) - (low >> 1);
}


• class Solution {
/**
* @param Integer $low * @param Integer$high
* @return Integer
*/
function countOdds($low,$high) {
return ($high + 1 >> 1) - ($low >> 1);
}
}


• impl Solution {
pub fn count_odds(low: i32, high: i32) -> i32 {
((high + 1) >> 1) - (low >> 1)
}
}