Restore IP Addresses
Explore how to use backtracking algorithms to restore valid IP addresses from a numeric string. Learn to segment the string into four parts, validate each between 0 and 255, and avoid leading zeros. This lesson helps you implement a solution that inserts dots correctly to form all possible valid IPs from the given input.
We'll cover the following...
We'll cover the following...
Statement
A valid IP address consists of four numeric segments separated by single dots. Each segment must be an integer between 0 and 255 (inclusive), and leading zeros are not allowed unless the segment is exactly ‘0.”
For instance, “10.0.1.25” and “172.16.0.5” are valid IP addresses, while “01.200.100.3,” “256.100.50.25,” and “172.16.0.500” are invalid.
Given a string s made up of digits only, return all ...