Quiz week of Nov 3

Just came back from writing the quiz.

Halfway through the explanations of sum_up, I realized I read the code wrong.
And then time ran out.

So I realized that sum_up(2) = 3
but I put 2.

I'm a little disappointed in myself, but at least I know what I did wrong?
Instead of moving up to the inner while loop, I went back to the line that assigns j to i
So that's why I got the wrong answer.

So the general formula was supposed to be
s = n + (n-1) + (n-2)

i.e. s = n(n+1) / 2

I hope it doesn't affect my mark too much.
Now I'm getting even more disappointed in myself.

I'm feeling a lot like Liz Lemon right now:



Should have spent more time thinking about the code.