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In this post, you will find the solution for the Bitwise AND of Numbers Range in C++, Java & Python-LeetCode problem. We are providing the correct and tested solutions to coding problems present on LeetCode. If you are not able to solve any problem, then you can take help from our Blog/website.
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Link for the Problem – Bitwise AND of Numbers Range– LeetCode Problem
Bitwise AND of Numbers Range – LeetCode Problem
Problem:
Given two integers left
and right
that represent the range [left, right]
, return the bitwise AND of all numbers in this range, inclusive.
Example 1:
Input: left = 5, right = 7 Output: 4
Example 2:
Input: left = 0, right = 0 Output: 0
Example 3:
Input: left = 1, right = 2147483647 Output: 0
Constraints:
0 <= left <= right <= 231 - 1
Bitwise AND of Numbers Range– LeetCode Solutions
Bitwise AND of Numbers Range Solution in C++:
class Solution { public: int rangeBitwiseAnd(int m, int n) { int shiftBits = 0; while (m != n) { m >>= 1; n >>= 1; ++shiftBits; } return m << shiftBits; } };
Bitwise AND of Numbers Range Solution in Java:
class Solution { public int rangeBitwiseAnd(int m, int n) { int shiftBits = 0; while (m != n) { m >>= 1; n >>= 1; ++shiftBits; } return m << shiftBits; } }
Bitwise AND of Numbers Range Solution in Python:
class Solution: def rangeBitwiseAnd(self, m: int, n: int) -> int: return self.rangeBitwiseAnd(m >> 1, n >> 1) << 1 if m < n else m
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