Defanging an IP Address

Defanging an IP Address

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.

Solutions

🧠 Cpp

class Solution {
public:
    string defangIPaddr(string address)
    {
        string res;

        for_each(address.begin(), address.end(),
                [&res](char c) 
                {
                    if(c == '.')
                        res+="[.]";
                    else
                        res.push_back(c);
                });
        return res;
    }
};