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Binary Number with Alternating Bits
Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values.
Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits will always have different values.
Example 1
Input: n = 5
Output: true
Explanation: The binary representation of 5 is: 10^1
Example 2
Input: n = 7
Output: false
Explanation: The binary representation of 7 is: 111.
Example 3
Input: n = 11
Output: false
Explanation: The binary representation of 11 is: 1011.
Constraints
- 1 <= n <= 231 - 1
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