2496 maximum value of a string in an array

## Maximizing String Value in an Array: A Comprehensive Tutorial

This tutorial delves into the problem of finding the maximum value of a string within an array of strings. We'll cover the problem statement, explore different approaches, provide detailed code examples in multiple languages (Python and Java), and discuss optimizations and complexities.

**1. Problem Statement**

Given an array of strings `strs`, we need to calculate the value of each string and return the maximum value among all strings in the array.

The value of a string is determined as follows:

* **If the string contains only digits (is numeric):** The value is the numerical representation of the string.
* **If the string contains non-digit characters (is non-numeric):** The value is the length of the string.

**Example:**

* "alic3" is non-numeric, so its value is its length: 5
* "bob" is non-numeric, so its value is its length: 3
* "3" is numeric, so its value is the integer 3
* "4" is numeric, so its value is the integer 4
* "00" is numeric, so its value is the integer 0 (parsed from "00")

The maximum value among these is 5.

**2. Approaches and Algorithms**

The core idea is straightforward: iterate through the array of strings, calculate the value of each string based on the rules, and keep track of the maximum value encountered so far. The primary challenge lies in efficiently determining whether a string is purely numeric. Here are several approaches:

**a. Iterative Digit Checking:**

* Iterate through each character of the string.
* If any character is not a digit, the string is non-numeric, and its value is its length.
* If all characters are digits, convert the string to an integer and use that as its value.

**b. Regular Expression (Regex) Matching:**

* Use a regular expression to check if the string matches a pattern representing only ...

#Algorithm
#DataStructures
#Programming