Project Euler Forum

I'm also happy to see that PE is back to a weekly schedule. To all the team, thank you for keeping it up! The first hundred problems are much easier than more recent ones. Someone just joining the site would be able to enjoy those for a fair amount of time, without having to look at the higher numbe...

@jaap, may I PM you my assumptions and a question? I believe I'm having the same difficulty tuple describes.

Another good link is https://en.wikipedia.org/wiki/Fundament ... arithmetic .

I just got this message:

Problem 609 will be accessible in 2 hours, 60 minutes

Problem 467 (View Problem)

Can anyone confirm that f(100) has 171 digits?

Whoops, sorry.

No, it says "in exactly r different ways".

I think I have it now.

Let's say Leonhard is in room 42. That could be because one "turn" ago he was in room 1042 (or 41 or 43) and moved, or he was in 42 and didn't move.

Is that right?

In my example "move, move, move, stop for X minutes", could he be anywhere except where he stopped? I agree that the stop duration doesn't matter.

Let's say that when the program determines Leonhard should stay in a room, he stays for X minutes. Let's also say that when I'm looking, he's stopped somewhere, spending his X minutes. If he arrives in a room, does he immediately check if he should wander further? If so, he could do something like "...

Thanks. So that means that I'm looking for the probability that:
A. His wandering led him to a square numbered room (1, 4, 9, 16, etc.) and
B. The program said stay there (for now).

Right?

Two questions:
1. Did Leonhard start in a particular room (for example, room 1)?
2. If Leonhard's program says stay in a room, does he stay forever?

Problem 555 (View Problem)
I'm pretty sure I understand the problem, but not the purpose of the variable p. In all of the references p has the same value as m. Am I missing something?

EDIT: mdean, you are correct, but I could swear it used to say that f₀ is defined as 1.

Shouldn't the problem read...

Define the polynomials ... f_ixⁱ⁺¹ for 0 ≤ i < n.

Thank you, albert_nik! I had the same Math.Pow problem (C#).

I see now that the message was on projecteuler.com , not projecteuler.net. The actual message was "this site could have harmed your computer". Infecions: URL:Mal

What is this other site?

I just tried to go to the site, but Avast reported that it is infected with malware. I didn't proceed further.

I was about to ask the same thing...