LeetCode 1523. 在区间范围内统计奇数数目

解题思路

low	high	个数
偶	偶	(high-low+0)/2
奇	奇	(high-low+2)/2
偶	奇	(high-low+1)/2
奇	偶	(high-low+1)/2

C++代码

class Solution 
{
    
public:
    int countOdds(int low, int high) 
    {
    
        return (high-low+low%2+high%2)/2;
    }
};