1523. Count Odd Numbers in an Interval Range
一、題目
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
二、程式作法
public class Solution
{
public int CountOdds(int low, int high)
{
if (low % 2 == 1)
return 1 + (high - low) / 2;
else
return (high - low) / 2 + high % 2;
}
}
三、思路筆記
