moonshotai/kimi-k2.6 🔢📝🖼️❓ → 📝

from collections import defaultdict
from typing import List, Dict


def group_anagrams(words: List[str]) -> Dict[str, List[str]]:
    """Group words by their anagram equivalence class.

    Returns a dictionary mapping sorted characters to the list of words
    that are anagrams of each other.
    """
    groups = defaultdict(list)
    for word in words:
        key = "".join(sorted(word))
        groups[key].append(word)
    return dict(groups)


if __name__ == '__main__':
    words = ["eat", "tea", "tan", "ate", "nat", "bat"]
    result = group_anagrams(words)
    print(result)
    # Example output: {'aet': ['eat', 'tea', 'ate'], 'ant': ['tan', 'nat'], 'abt': ['bat']}