Surely Smallester Mouse

Discussion of challenges you have already solved
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Hippo
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Post by Hippo »

dangermouse@ was your solution of the kind (3/20)^5 probability solution or you made something better?

Thanks for answer :)
a.goth
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Surely Smallesterest Mouse

Post by a.goth »

Since challenge 'Surely Smallesterest Mouse' apparently can only be solved with incredible luck, I would like to discuss potential solution ideas openly. Do you agree with that?

The most general solution which I have so far, returns max{cell[r ± 1], cell[s]}, where 0 < r < 9 and 0 ≤ s ≤ 9:

    (r + 1)<(r - 1)<:r+< s< 11^3^::v p

With at most 19 instructions, is there a better approach than comparing three memory cells and returning their maximum? Are there perhaps memory cells where the largest number occurs more frequent?
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Hippo
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Post by Hippo »

At least I am sending max of 3 cells algorithm each 1 hour. Average solution time is about 1.5 year. I am still unlucky.

Actually I use just

Code: Select all

10<1<::<s<11^3^::^p
so your code is more general (I have 0,1 fixed instead of your's r+/-1) and I use ^ rather to v.

BTW: I have tested it on already solved mouses (where there is no pondering penalty) and number of tries till success was "random" as expected.
a.goth
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Joined: Sat Sep 14, 2013 10:39 am

Surely Smallesterest Mouse

Post by a.goth »

It would be nice to get some information from the five solvers, but I do not count on it. On the other hand, except for Enodo, all solvers seem to be still active. Perhaps it makes sense to send them a PM to draw their attention to the thread? I have to think about it.
a.goth
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Joined: Sat Sep 14, 2013 10:39 am

Uniform distribution

Post by a.goth »

I have inspected 5,000 test cases and here is how the maximum was distributed over the first 20 locations in memory:

Code: Select all

cell  ||   0 |   1 |   2 |   3 |   4 |   5 |   6 |   7 |   8 |   9
------++-----+-----+-----+-----+-----+-----+-----+-----+-----+---- ...
count || 260 | 259 | 242 | 253 | 251 | 240 | 253 | 237 | 254 | 238


          10 |  11 |  12 |  13 |  14 |  15 |  16 |  17 |  18 |  19
     ... ----+-----+-----+-----+-----+-----+-----+-----+-----+----
         224 | 244 | 268 | 241 | 258 | 243 | 228 | 269 | 269 | 269
This looks evenly distributed to me. In addition, your program would not have been successful and mine exactly once for the parameters r = 4, s = 6, r = 4, s = 9 and r = 7, s = 5.
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Hippo
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Post by Hippo »

Hippo wrote:At least I am sending max of 3 cells algorithm each 1 hour. Average solution time is about 1.5 year. I am still unlucky.

Actually I use just

Code: Select all

10<1<::<s<11^3^::^p
so your code is more general (I have 0,1 fixed instead of your's r+/-1) and I use ^ rather to v.

BTW: I have tested it on already solved mouses (where there is no pondering penalty) and number of tries till success was "random" as expected.
I am clearly unlucky as my solution takes already more than expected value ... still expected value is 1.5 year from now solution.

BTW: a.goth ... I agree your solution can match more possible cases, but the success rate is same as trying memory 0,1,2 in each attempt. ... OK if the generator would not generate equally random cases, knowing it could favour you.

There is still harvestsnow's hint about 7/40 success probability per test (what was not confirmed nor rejected).
a.goth
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Surely Smallesterest Mouse

Post by a.goth »

Hippo wrote:There is still harvestsnow's hint about 7/40 success probability per test (what was not confirmed nor rejected).
I have already been pondering a lot about harvestsnow's post. The only way I have found so far to achieve this probability of success is to use 4 of the 20 numbers and return their maximum in 21 of the 24 possible permutations. This would result in--correct me if I am wrong--a probability of success of exactly 4/20 * 21/24 = 7/40. Unfortunately, I have not found such a HVM program yet. Any ideas anyone?
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Hippo
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Post by Hippo »

For a long time the follower is the only quest I "activelly" work on. I start feel the probability is against me ... I am already far after the "half-life".
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Hippo
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Post by Hippo »

Wow, I have finally won the lottery.
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