#693

Binary Number with Alternating Bits

newbie · 290 · lc easy +20 · verified · 69.8% accepted · 1,724 likes · top 78%

Description

Given a positive integer, determine whether every pair of adjacent bits in its binary representation alternates between 0 and 1. Return true if so, otherwise false.

Example 1:

Input: n = 5

Output: true

Explanation: The binary representation of 5 is: 101

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.

Code

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class Solution:
    def hasAlternatingBits(self, n: int) -> bool:

class Solution:
    def hasAlternatingBits(self, n: int) -> bool: