What does ++a means in PYTHON?

Question

I saw it in one challenge:
def f(x, y):
t= x%y
++t
return t * x + y
(returns 13)

Answer 1

There is no prefix operator in Python, unlike in other programming languages.

++a here does nothing. It simply places the addition operator twice in front of the variable. Take for example when a = 5,

a = 5
-a = -5
--a = 5
+a = 5
++a = 5

And because the values are not even printed, the original value of the variable will not be changed.

Answer 2

And I tried this:
a=0
++a
print(a)
And result was 0

Answer 3

First
I forgot to put
print(f(5, 3))

Second
I thank you all for trying, but you didn't help me. I actually just got confused for a moment and thought % means //.

Answer 4

it means t = t + 1