0093-restore-ip-addresses.adoc

93. Restore IP Addresses

{leetcode}/problems/restore-ip-addresses/[LeetCode - Restore IP Addresses^]

Given a string containing only digits, restore it by returning all possible valid IP address combinations.

Example:

Input: "25525511135"
Output: ["255.255.11.135", "255.255.111.35"]

解题分析

使用回溯，每次做一次字符串切割，如果切割的字符串符合 IP 的大小值，则前进一步，直到把字符串切割完毕并且正好切割四份。

参考资料

1. 复原IP地址 - 复原IP地址 - 力扣（LeetCode）

Given a string containing only digits, restore it by returning all possible valid IP address combinations.

Example:

Input: "25525511135"
Output: ["255.255.11.135", "255.255.111.35"]

link:{sourcedir}/_0093_RestoreIPAddresses.java[role=include]