## Problem – Bitwise AND of Numbers Range LeetCode Solution

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 <= 2`^{31} - 1

## Bitwise AND of Numbers Range LeetCode Solution in Java

```
public class Solution {
public int rangeBitwiseAnd(int m, int n) {
if(m == 0){
return 0;
}
int moveFactor = 1;
while(m != n){
m >>= 1;
n >>= 1;
moveFactor <<= 1;
}
return m * moveFactor;
}
}
```

## Bitwise AND of Numbers Range LeetCode Solution in C++

```
int rangeBitwiseAnd(int m, int n) {
return (n > m) ? (rangeBitwiseAnd(m/2, n/2) << 1) : m;
}
```

## Bitwise AND of Numbers Range LeetCode Solution in Python

```
def rangeBitwiseAnd(self, m, n):
i = 0
while m != n:
m >>= 1
n >>= 1
i += 1
return n << i
```

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