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Complete the sequence

Started by Crispy 25 replies 2.5k views
Original Post
Crispy
Crispy
I made this up in lecture today - there are two versions to this. I'm posting the harder version with a clue that should remove any dualities or multiple solutions. 1 1 1 2 _ _ 3 _ _ The clue: 1 < 1 < 1 IMPORTANT NOTE: Admittedly, this sequence is obscure, but should only have one set of congruent answers. Post the minimal possible solution from that set (as in: of two members of one set, for instance 3/3 and 6/6, 6/6 is smaller than 3/3, although not minimal in the set in this case).
"Literally, it means that Bob is everything you can think of, but not dead; i.e., Bob is a purple-spotted, yellow-striped bumblebee/dragon/pterodactyl hybrid with a voracious addiction to Twix candy bars, but not dead."- kSquared
Override
Override
I didn't understand most of that, but it seems to me that it could be:

111222333
dagarach
dagarach
Normally, sequence puzzles are fairly well defined, such that a valid "wrong" answer is impossible. I would hazard a guess that Override's answer is "wrong".

This is normally a symptom of odd-one-out puzzles, which I hate for that very reason, and don't understand why they are found on so many IQ tests.
kSquared
kSquared
Quote:
Admittedly, this sequence is obscure, but should only have one set of congruent answers. Post the minimal possible solution from that set (as in: of two members of one set, for instance 3/3 and 6/6, 6/6 is smaller than 3/3, although not minimal in the set in this case).

I don't understand how 6/6 is "smaller" than 3/3 when both represent the same value, and especially since 6 > 3.
- k2 "Choose a job you love, and you'll never have to work a day in your life." — Confucius"Logic will get you from A to B. Imagination will get you everywhere." — Albert Einstein"Money is the most egalitarian force in society. It confers power on whoever holds it." — Roger Starr{General Programming Forum FAQ<
jbadams
jbadams
Quote:
Original post by kSquared
Quote:
Admittedly, this sequence is obscure, but should only have one set of congruent answers. Post the minimal possible solution from that set (as in: of two members of one set, for instance 3/3 and 6/6, 6/6 is smaller than 3/3, although not minimal in the set in this case).

I don't understand how 6/6 is "smaller" than 3/3 when both represent the same value, and especially since 6 > 3.


While it's true that 6 > 3, you need to pay attention to the denominators. ie. 1/6 is smaller than 1/3. I don't understand the number sequence above however.
- Jason Astle-Adams
George2
George2
Quote:
Original post by Crispy
I made this up in lecture today - there are two versions to this. I'm posting the harder version with a clue that should remove any dualities or multiple solutions.

1 1 1 2 _ _ 3 _ _

The clue:

1 < 1 < 1


Your clue makes no sense at all. But I will take a shot :

1 1 1 2 2 4 3 3 9 (1 * 1 = 1 => 2 * 2 = 4 => 3 * 3 = 9)

"THE INFORMATION CONTAINED IN THIS REPORT IS CLASSIFIED; DO NOT GO TO FOX NEWS TO READ OR OBTAIN A COPY." , the pentagon
Crispy
Crispy
George2 is close to the solution, but not 100% correct. Hint: see the clue in the OP one more time...
"Literally, it means that Bob is everything you can think of, but not dead; i.e., Bob is a purple-spotted, yellow-striped bumblebee/dragon/pterodactyl hybrid with a voracious addiction to Twix candy bars, but not dead."- kSquared
George2
George2
1 1 1 2 4 2 3 9 3

Or maybe :

1 1 1 2 2 4 3 3 27 (powers instead of multiplications)

Still don't get the clue.
"THE INFORMATION CONTAINED IN THIS REPORT IS CLASSIFIED; DO NOT GO TO FOX NEWS TO READ OR OBTAIN A COPY." , the pentagon
dorix
dorix
I was thinking it could be:

1 1 1 2 4 8 3 9 27

(1**1 1**2 1**3 2**1 2**2 2**3 3**1 3**2 3**3)
Sandman
Sandman
You should post more of the sequence, because at the moment there are thousands of possible correct answers and it's just a guessing game.

A better clue might help too. One is smaller than one is smaller than one does not make sense.

Quote:


Your clue makes no sense at all. But I will take a shot :

1 1 1 2 2 4 3 3 9 (1 * 1 = 1 => 2 * 2 = 4 => 3 * 3 = 9)


My 'guess' is:

1 1 1 2 2 1 3 3 1
eleusive
eleusive
1 1 1 2 4 2 3 9 3

or

1 1 1 2 1 2 3 1 3

???
"What are you trying to tell me? That I can write an O(N^2) recursive solution for a 2-dimensional knapsack?" "No, programmer. I'm trying to tell you that when you're ready, you won't have to." -Adapted from "The Matrix"
eleusive
eleusive
Quote:
Original post by Jimmy Valavanis
1 1 1 2 _ _ 3 _ _

1*1=1 2*1=2 3*1=3 ==>

1 1 1 2 1 2 3 1 3


?????


Quote:
Original post by Eleusive
1 1 1 2 1 2 3 1 3
?????


[grin]
"What are you trying to tell me? That I can write an O(N^2) recursive solution for a 2-dimensional knapsack?" "No, programmer. I'm trying to tell you that when you're ready, you won't have to." -Adapted from "The Matrix"
eleusive
eleusive
So Crispy...you plan on telling us the answer?
"What are you trying to tell me? That I can write an O(N^2) recursive solution for a 2-dimensional knapsack?" "No, programmer. I'm trying to tell you that when you're ready, you won't have to." -Adapted from "The Matrix"
furby100
furby100
This whole exercise appears utterly pointless. When someone gets the answer, this had better be good, and I doubt it will, since whenever one of these has happened before the answer was just made hopelessly obscure by how ill-defined the problem was.

Oh, and nobody's done 1 1 1 2 1 1 3 1 1 yet, or 1 1 1 2 4 8 3 9 27.
eleusive
eleusive
Maybe so, but I would still like to see the "answer" and explanation.
"What are you trying to tell me? That I can write an O(N^2) recursive solution for a 2-dimensional knapsack?" "No, programmer. I'm trying to tell you that when you're ready, you won't have to." -Adapted from "The Matrix"
boolean
boolean
111211321?
Crispy
Crispy
Quote:
Original post by dorix
I was thinking it could be:

1 1 1 2 4 8 3 9 27

(1**1 1**2 1**3 2**1 2**2 2**3 3**1 3**2 3**3)


Your solution is correct. And should be the only correct one if you read my original post word-for-word and pay attention to every detail.
"Literally, it means that Bob is everything you can think of, but not dead; i.e., Bob is a purple-spotted, yellow-striped bumblebee/dragon/pterodactyl hybrid with a voracious addiction to Twix candy bars, but not dead."- kSquared
dorix
dorix
Quote:
Original post by Crispy
Quote:
Original post by dorix
I was thinking it could be:

1 1 1 2 4 8 3 9 27

(1**1 1**2 1**3 2**1 2**2 2**3 3**1 3**2 3**3)


Your solution is correct. And should be the only correct one if you read my original post word-for-word and pay attention to every detail.

Cool, but I still don't understand how the original clues eliminate any of the other choices given -- or suggest this one over any others. I pretty much just pulled that out of a hat.

So how can 1 < 1 < 1 ever be true?
Crispy
Crispy
Quote:
Original post by dorix
So how can 1 < 1 < 1 ever be true?


Do not view the 1's as numbers, but rather as different instances of members from the same set.

Let's say the relationship between two members of a set is: nj < nj+1, where njk = njk.

In human terms this means that x < y if x = nk and y = nk+m, where m > 0.

Now imagine if n = 1.

Finally, do not think that 1 < 1, but think that the expression behind one 1 is less than the expression behind the other 1: 11 < 12 < 13.

This isn't a problem from the realm of mathematics, so don't treat it as one, but rather a problem from the real of set theory. Minimization is a set theory function that finds the smallest possible solution to a problem - ergo, for instance, given that the set is held together by the relation that q < r, and that the set only contains letters, the minimized expression of the relation is b < a, not q < r.

Does that make any sense (read: did I explain that right because I could be wrong in my explanation?)?
"Literally, it means that Bob is everything you can think of, but not dead; i.e., Bob is a purple-spotted, yellow-striped bumblebee/dragon/pterodactyl hybrid with a voracious addiction to Twix candy bars, but not dead."- kSquared

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