목록Restore Ip Addresses (1)

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LeetCode: 93. Restore IP Addresses

class Solution: def restoreIpAddresses(self, s: str) -> List[str]: self.ret = [] self.nums = set([str(i) for i in range(256)]) self.helper(s, []) return self.ret def helper(self, s, ip): if len(ip) == 4: if not s: self.ret.append('.'.join(ip)) return if not s: return for i in range(min(3, len(s))): if s[:i+1] in self.nums: self.helper(s[i+1:], ip+[s[:i+1]])
Computer Science/Coding Test 2021. 10. 11. 16:06
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