201. Bitwise AND of Numbers Range java solutions

Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive.

For example, given the range [5, 7], you should return 4.

Credits:
Special thanks to @amrsaqr for adding this problem and creating all test cases.

 

Subscribe to see which companies asked this question

public class Solution {
    public int rangeBitwiseAnd(int m, int n) {
        int i = 0;
        while(m != n){
            m >>= 1;
            n >>= 1;
            i++;
        }
        return (m << i);
    }
}