[SOLVED] How can I resolve timeout problem with my task called "Last digit of A large number"?

How can I resolve timeout problem with my task called "Last digit of A large number"?

Basically, I have written such a program which could acquire the last digit of large numbers. However, at a certain point it crashed due to timeout. Actually, it doesn't have an exact error popped up but still takes a whole lot more time to process the entire code.

Here is my program:

def last_digit(n1, n2):
    number = n1**n2
    number_list = str(number).split()
    return number_list[0][-1]

print(last_digit(3715290469715693021198967285016729344580685479654510946723, 68819615221552997273737174557165657483427362207517952651))

I was expecting to get the last digit of the equation. I wanna get rid of timeout and quickly solve that problem. I am open to all suggestions thanks in advance!

Solution

3715290469715693021198967285016729344580685479654510946723 ** 68819615221552997273737174557165657483427362207517952651 is too much to calculate. If you try, it'll never finish. You can try with much smaller numbers and gradually increase them to get a sense of the problem.

The task basically requires some very specific knowledge, not general programming skills. You want to use the pow function. Take a look at the docs: https://docs.python.org/3/library/functions.html#pow

You may also want to look up "python mod" to understand what % means, although the point is not to use %, but something equivalent.