LeetCode 1108. Defanging an IP Address

Question

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.

 

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Solution

Python

class Solution:
    def defangIPaddr(self, address: str) -> str:
        newip = address.replace(".","[.]")
        return newip

Java