So I am back in the surface! [Part IV]

All industrial food items in the Underground, the one made by companies for monster consumption, have some weird qualities. First off, they can't be divided or cut for the intent of sharing , if the food item is meant to be eaten alone. This includes Glamburgers , Monster Candy, and Astronaut Food. Secondly, they can only be consumed , no other things can be done by them, you can't even bite down to cut them to two, they will disappear .

Now, into the question, Alphys decides to buy a whole tray of Glamburgers, I mean, a whole tray. The thing is, we will never know how large the tray is. All we know is it is a perfect square that is gridded (grid is also made up of perfect squares) that each contain a Glamburger, like the picture below.

Alphys divides this among three people: herself, Papyrus, and Undyne, but she said that any extra Glamburgers that remain in the tray after proper division are for her, usually not her behavior.

The question is, how many Glamburgers in maximum could end up as extras \text{The question is, how many Glamburgers in maximum could end up as extras}

after the initial division (consider all scenarios) \text{after the initial division}\textbf{ (consider all scenarios)}

Remember, they can’t be divided, so no half Glamburgers \text{Remember, they can't be divided, so no half Glamburgers}

I will be impressed if you will post a proof as well \text{I will be impressed if you will post a proof as well} :)


Whoever wants to submit a report for this problem can go here \color{#333333}\text{Whoever wants to submit a report for this problem can go here}


The answer is 1.

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1 solution

Frisk Dreemurr
Dec 22, 2020

Every positive integer is of one of the three forms:

3 k , 3 k + 1 , or 3 k + 2 3k, 3k +1,\text{ or }3k + 2 for some k k

So we consider the square of each in turn.

( 3 k ) ² = 3 × 3 × k ² ; m = 3 k ² (3k)² = 3 × 3 × k²; \boxed{m = 3 k²}

( 3 k ) ² = 3 m (3k)² = 3m

( 3 k + 1 ) ² = 9 k ² + 6 k + 1 ; m = 3 k ² + 2 k (3k+1)² = 9 k² + 6 k + 1; \boxed{m = 3k² + 2k}

( 3 k + 1 ) ² = 3 m + 1 (3k+1)² = 3m + 1

( 3 k + 2 ) ² = 9 k ² + 12 k + 4 (3k+2)² = 9 k² + 12 k + 4

= 9 k ² + 12 k + 3 + 1 ; m = 3 k ² + 4 k + 1 = 9 k² + 12 k + 3 + 1; \boxed{m = 3 k² + 4k + 1}

( 3 k + 2 ) ² = 3 m + 1 (3k+2)² = 3m + 1

I believe this proof, as the guy who got the extra Glamburger by luck was me :)

Frisk Dreemurr - 5 months, 3 weeks ago

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@Percy Jackson , I followed your advice this time. Thnx for giving the idea :)

Frisk Dreemurr - 5 months, 3 weeks ago

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Glad that you didn't waste a perfectly good solution space lol

A Former Brilliant Member - 5 months, 3 weeks ago

A Glamorous burger? Wow...just, wow...

A Former Brilliant Member - 5 months, 3 weeks ago

You're a guy!?..

Nirjhar Kheto - 5 months, 2 weeks ago

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Ding, ding ding, we have a winner!!! Congrats @Nirjhar Kheto , you're the first (apart from me) to find out that Frisk is not actually a guy, and is pretty stupid for a girl! Your prize is...nothing! I'm so generous, aren't I :P

A Former Brilliant Member - 5 months, 2 weeks ago

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@A Former Brilliant Member

...pretty stupid for a girl!

lol

Frisk Dreemurr - 5 months, 2 weeks ago

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@Frisk Dreemurr Well, don't deny it, you are pretty stupid lmao

A Former Brilliant Member - 5 months, 2 weeks ago

What made you think that ftlog?

Frisk Dreemurr - 5 months, 2 weeks ago

In the problem description, you mention that the boxes come in perfect cubes, meaning that possible Glamburger amounts could be 1 Glamburger, 8 Glamburgers, 27 Glamburgers, etc. Unless there was a typo in the problem description, since the only possible remainders after perfect division by 3 are 0, 1, or 2, and 5 3 = 125 5^3 = 125 Glamburgers divides with 2 as remainder, shouldn't the maximum number of extra Glamburgers be 2, not 1?

Alexander McDowell - 5 months, 3 weeks ago

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yeah i agree. even 8 is 3k+2.
maybe the box was meant to be a square box. but the wording says cube.
anyway it's a nice idea.
i don't get why Monster Candy and Astronaut Food are mention in the description.


num IC - 5 months, 3 weeks ago

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I am very sorry @Alexander McDowell and @num IC , the question is now corrected. Feel free to report my other questions once you find a flaw in them in the report room (link in question itself)

Frisk Dreemurr - 5 months, 2 weeks ago

Monster Candy and Astronaut Food are other great fooditems you can find in the depths of the Underground. They are quite famous as well among monsters

If you were wondering, these are references to Undertale

Frisk Dreemurr - 5 months, 2 weeks ago

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@Frisk Dreemurr "In case you're wondering..."

Nobody will wonder Dreemurr, they know you too well to think you won't try choking people with Undertale references (lol)

A Former Brilliant Member - 5 months, 2 weeks ago

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@A Former Brilliant Member lmfao, at least I don't brag about how great I am in my monologue (lel)

Frisk Dreemurr - 5 months, 2 weeks ago

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@Frisk Dreemurr At least I brag about things that are worth bragging about 😎

A Former Brilliant Member - 5 months, 2 weeks ago

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@A Former Brilliant Member Bragging that you "only brag things that are worthful" isn't worthful Percy...

Frisk Dreemurr - 5 months, 2 weeks ago

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@Frisk Dreemurr I would argue, but its no use talking to someone who has a lump of pixels in their head instead of an actual brain. Ciao!

A Former Brilliant Member - 5 months, 2 weeks ago

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@A Former Brilliant Member

I would argue, but its no use talking to someone who has a lump of pixels in their head instead of an actual brain. Ciao!

This is the formal way of saying

"I can't waste time for your petty comebacks girl lmao XD lol lmfao"

...lol

Frisk Dreemurr - 5 months, 2 weeks ago

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@Frisk Dreemurr lol technically :P

A Former Brilliant Member - 5 months, 2 weeks ago

@Frisk Dreemurr I've beaten Undertale all endings and still don't know what a Glamburger look like.

Half pass3 - 5 months, 2 weeks ago

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The pic is strictly canon, you can see it in the menu of the MTT-Brand Burger Emporium while buying food from Burgerpants

Frisk Dreemurr - 5 months, 2 weeks ago

Look at the the top left corner of Burgerpants' store, all the four items buyable are depicted there

The image link to MTT-Brand Burger Emporium

Frisk Dreemurr - 5 months, 2 weeks ago

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