Tic-tac-toe

wrenkim292 22.05.2026 11:07

Tic-tac-toe

Pure Python, no deps

core.py

def flatten(lst):
    result = []
    for item in lst:
        if isinstance(item, list): result.extend(flatten(item))
        else: result.append(item)
    return result

print(flatten([1, [2, [3, 4]], 5]))

Tic-tac-toe

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