Problem 57805. Easy Sequences 105: One-line Code Challenge - IPv4 Address Validation
The Internet Protocol version 4 (IPv4) is the dominant protocol for routing devices over the internet. IPv4 addresses are usually represented by four 1-byte decimal numbers (0 to 255) separated by three dots.
In this exercise, we are asked to check whether a given string of characters is a valid IPv4 address or not. Leading zeros are allowed, however each byte should only contain at most 3 characters, with no spaces.
For example, the following are valid IPv4 address:
But the following are invalid addresses:
The following restrictions apply:
- The function should only have one (1) line of code, excluding the function start line.
- Semicolons (;) are considered end-of-line characters.
- Please suppress the function end line. Keyword 'end' is not allowed.
- Regular expressions are allowed.
- Only 'pure' matlab functions/commands are allowed (no java, no python).
This would be the last of my one-line challenges.
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