[leetcode] 1108. Defanging an IP Address

[leetcode] 1108. Defanging an IP address

Description

Given a valid (IPv4) IP address, return a defanged version of that IP address.

A defanged IP address replaces every period “.” with “[.]”.

Example 1:

Input: address = "1.1.1.1"Output: "1[.]1[.]1[.]1"

Example 2:

Input: address = "255.100.50.0"Output: "255[.]100[.]50[.]0"

Constraints:

The given address is a valid IPv4 address.

分析

题目的意思是：把IP地址‘.’替换成’[.]’，实现也很直接，直接遍历，把相应的位置变换一下就可以了哈。

代码

class Solution: def defangIPaddr(self, address: str) -> str: res='' for ch in address: if(ch!='.'): res+=ch else: res+='[.]' return res

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