201. 数字范围按位与

201. 数字范围按位与

---

题目链接：201. 数字范围按位与

代码如下：

//参考：https://leetcode.cn/problems/bitwise-and-of-numbers-range/solutions/20925/0he-shui-yu-du-shi-0-by-powcai
class Solution {
public:
    int rangeBitwiseAnd(int left, int right) {
       int count=0;

       while(left!=right)
       {
            left>>=1;
            right>>=1;
            count++;
       }

       return left<<count;
    }
};