Mandawi

__credits__ = ["https://finxter.com/"]
def quick_sort(data:list)->list:
    if not data: return []
    return quick_sort([x for x in data[1:] if x< data[0]]) + data[0:1] + quick_sort([x for x in data[1:] if x>=data[0]])

Mandawi

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!