NeetCode #499LC-93MediumBacktracking
← Back to All Problems#499 · #93 · Restore IP Addresses(复原 IP 地址)
📌 Problem Statement & Constraints
A valid IP address consists of exactly four integers separated by dots, each between 0 and 255 with no leading zeros. Given a string
s of digits, return all valid IP addresses obtainable by inserting dots. Constraints: 1 <= s.length <= 20.🔒
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