#1784

Check if Binary String Has at Most One Segment of Ones

pupil · 520 · lc easy +28 · verified · 48.5% accepted · 637 likes · top 34%

Description

Given a binary string s without leading zeros, return true if all '1' characters form a single contiguous run.

Example 1:

Input: s = "1001"

Output: false

Explanation: The ones do not form a contiguous segment.

Example 2:

Input: s = "110"

Output: true

Code

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class Solution:
    def checkOnesSegment(self, s: str) -> bool:

class Solution:
    def checkOnesSegment(self, s: str) -> bool: