I understand the code

Question

def test(func, arg):
return func(func(arg))

def mult(x):
return x * x

print(test(mult, 2))

I don't understand the code and how in the world it gives 16. I don't understand.

Answer 1

Alvin Phyo Htet

test(mult, 2)
= mult(mult(2))
= mult(2 * 2)
= mult(4)
= 4 * 4
= 16

Here func is known as mult because you have passed function 'mult' as an argument.

https://code.sololearn.com/cgfonDJu8pH0/?ref=app