English
1523. Count Odd Numbers in an Interval Range
Problem Statement
Given two non-negative integers low
and . Return the count of odd numbers between
low
and (inclusive).
Example 1:
Input: low = 3, high = 7
Output: 3
Explanation: The odd numbers between 3 and 7 are [3,5,7].```
<p><strong class="example">Example 2:</strong></p>
Input: low = 8, high = 10 Output: 1 Explanation: The odd numbers between 8 and 10 are [9].```
Constraints:
0 <= low <= high <= 10^9
Click to open Hints
- If the range (high - low + 1) is even, the number of even and odd numbers in this range will be the same.
- If the range (high - low + 1) is odd, the solution will depend on the parity of high and low.
Solution:
go
package main
func countOdds(low int, high int) int {
return ((high + 1) / 2) - (low / 2)
}
...