2025-08-15 12:03:12 +0000 UTC

Check if Binary String Has at Most One Segment of Ones
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Code

class Solution:
    def checkOnesSegment(self, s: str) -> bool:
        enc = False
        for char in s[1:]:
            if char == "1" and enc:
                return False
            elif char == "1":
                continue
            enc = True
        return True