x = [(lambda y: y ** 2)(i) for i in range(3)]
print(x)

x = [(lambda y: y ** 2)(i) for i in range(3)]
print(x)

def show(a, b=2, *args, c=3, **kwargs):
    return a, b, args, c, kwargs

print(show(1, 5, 6, 7, c=10, d=20))

def outer():
    x = 1
    def inner():
        nonlocal x
        x += 1
        return x
    return inner

f = outer()
print(f(), f())

def repeat(n):
    def decorator(func):
        def wrapper(*args, **kwargs):
            return [func(*args, **kwargs) for _ in range(n)]
        return wrapper
    return decorator

@repeat(3)
def greet(name):
    return f"Hi, {name}"

print(greet("Leo"))

from functools import partial

def power(base, exponent):
    return base ** exponent

square = partial(power, exponent=2)
print(square(4))

def counter():
    count = 0
    def inc():
        nonlocal count
        count += 1
        return count
    return inc

a = counter()
b = counter()
print(a(), b(), a())