Function delete_reoccurring_characters

algorithms/string/delete_reoccurring.py:17–36

Remove duplicate characters, keeping only the first occurrence of each. Args: string: The input string to process. Returns: A new string with duplicate characters removed. Examples: >>> delete_reoccurring_characters("aaabcccc") 'abc'

(string: str)

def delete_reoccurring_characters(string: str) -> str:
    """Remove duplicate characters, keeping only the first occurrence of each.

    Args:
        string: The input string to process.

    Returns:
        A new string with duplicate characters removed.

    Examples:
        >>> delete_reoccurring_characters("aaabcccc")
        'abc'
    """
    seen_characters: set[str] = set()
    output_string = ""
    for char in string:
        if char not in seen_characters:
            seen_characters.add(char)
            output_string += char
    return output_string