Problem p00077 - Generation 1

Orig Description

Run Length Encoding
When a string has consecutive characters, you can compress the string by replacing the characters with a rule. For example, if the string is "AAAA", you can represent it as "@4A" and compress it by one character. Create a program that takes a compressed string as input and restores it to the original string. However, the restored string should not contain the "@" character.
In addition, the original string consists of uppercase and lowercase letters, digits, and symbols, and is within 100 characters. Consecutive characters are up to 9 characters.
Input
Multiple strings are given. Each line contains one string. The number of strings is no more than 50.
Output
For each string, output the restored string for each character on one line.
Sample Input
ab@5C1@8050
@99+1=1@90
Output for the Sample Input
abCCCCC10000000050
999999999+1=1000000000

Extracted Specification

An integer \( T \) (1 ≤ \( T \) ≤ 50), representing some quantity or size.
A list of \( T \) strings, where each string is up to 100 characters long. Each string consists of uppercase and lowercase letters, digits, and symbols. Consecutive characters are up to 9 characters.

### Example Input:

```
2
ab@5C1@8050
@99+1=1@90
```

### Function Signature:
Write a function f(T, inputs) that takes in the input.
```python
def f(T: int, inputs: List[str]):
    '''
    T: an integer
    inputs: a list of strings
    '''
```

Test Case Generator

Sure, let's create a test case generator for the "Run Length Encoding" problem.

### Explanation of the Test Case Generator:

1. **Number of Strings (`num_strings`)**: We'll randomly determine the number of strings, ensuring it stays within the specified limit (1 to 50).
2. **String Length (`string_length`)**: Each string will also be randomly determined, ensuring it stays within the limit (1 to 100 characters).
3. **String Generation**: We'll generate strings that follow the encoding rules. This involves creating sequences of characters, potentially followed by sequences like `@nX` where `n` is a digit from 1 to 9 and `X` is any character.
4. **Output the Strings**: The generator will print strings that mimic the input format specified.

Here's the Python code for the test case generator:

```python
import random
import string

def generate_encoded_char():
    """ Generate a single encoded character sequence. """
    char = random.choice(string.ascii_letters + string.digits + string.punctuation.replace("@", ""))
    if random.random() < 0.5:  # 50% chance to add encoding
        count = random.randint(1, 9)
        return f"@{count}{char}"
    else:
        return char

def generate_encoded_string(length):
    """ Generate an encoded string of given length. """
    encoded_string = []
    while len(''.join(encoded_string)) < length:
        encoded_char = generate_encoded_char()
        if len(''.join(encoded_string)) + len(encoded_char) <= length:
            encoded_string.append(encoded_char)
        else:
            break  # Prevent overflow
    return ''.join(encoded_string)

def tcgen():
    num_strings = random.randint(1, 50)
    test_cases = []
    
    for _ in range(num_strings):
        string_length = random.randint(1, 100)
        encoded_string = generate_encoded_string(string_length)
        test_cases.append(encoded_string)
    
    return test_cases

# Example usage
test_cases = tcgen()
for case in test_cases:
    print(case)
```

### Explanation of the Code:

1. **`generate_encoded_char` Function**: This function generates a single character or an encoded sequence. It randomly decides whether to generate an encoded sequence or just a single character.
2. **`generate_encoded_string` Function**: This function generates an encoded string of a given length by repeatedly calling `generate_encoded_char` and ensuring the total length of the string does not exceed the specified length.
3. **`tcgen` Function**: This function generates the required number of strings (between 1 and 50) and each string's length (between 1 and 100). It ensures that every string follows the specified encoding rules.

The `print(case)` at the end is for demonstration purposes, and you can remove or adjust it based on your needs (e.g., writing to a file or returning the test cases from a function).

This generator should help you create a variety of test cases for the "Run Length Encoding" problem to thoroughly test your solution.

Extract Arguments

def extract_arguments(fh):
    lines = fh.readlines()
    inputs = [line.strip() for line in lines]
    return inputs