IMPORTANT! Deadline extended, bug found!

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IMPORTANT! Deadline extended, bug found!

Mensaje por Admin el Miér Dic 30, 2015 3:13 pm

The reason of this post is to get you informed about the extension of the deadline for the registration of solutions for the Coding Challenge, which has been moved to January 15th, 2016.

The reason for this change is due to a bug found in the script that validates solutions, which accepts some additional cases not originally considered in the problem description.

The bug is related to the way the first and last word of movie names overlaps, where the last word of a movie name can make a partial overlap with the first word of the following. For example:

Given the following titles: (*these are not part of the dataset)
 - Curiosity kills the cat
 - Catch a Fire
 - Fired Up
 - Upside down

It can generate the following string which is marked as valid:

curiosity kills the catch to fired upside down

Because of this bug, the extension of 15 days was carried out to allow participants to modify their source code and get better solutions taking advantage of this.

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por chess1424 el Lun Ene 04, 2016 2:24 am

I understand that is possible concatenate as above. But what about this input:
-upside down
-xxxdowntown is magic

Is possible the next output ?  

upside downtown is magic // (because down is a partial overlap of downtown)

Ignoring the characters before downtown, for this case the xxx. Is this correct or they can't concatenate ?.


I Would like to know also if is this correct:
-teacher is tall
-123teacher2415

output: 123teacher is tall (is correct ?)

-teacho
-123teacher2415

they can't concatenate, right ?

-lalaper
-perla

output: lalaperla (is possible ?)

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por Admin el Lun Ene 04, 2016 12:08 pm


But what about this input:
-upside down
-xxxdowntown is magic

This is not possible because the characters xxx does not allow to overlap the movie names at the end and at the beginning.

If the movie names are:

-upside down
-downtown is magic

Then, this is a valid solution:

upside downtown is magic


I Would like to know also if is this correct:
-teacher is tall
-123teacher2415

output: 123teacher is tall (is correct ?)

-teacho
-123teacher2415

they can't concatenate, right?

All of them are incorrect because it is not a complete overlap.


-lalaper
-perla

output: lalaperla (is possible ?)

This one is correct, the overlap here is possible because it's at the beginning and at the end of the movie names.

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por MSilverio el Lun Ene 04, 2016 5:27 pm

you had said that
- Curiosity kills the cat
- Catch a Fire
- Fired Up
- Upside down

curiosity kills the catch to fired upside down

is an invalid solution, and the reason why you extended the deadline

now you are saying that:

"If the movie names are:

-upside down
-downtown is magic

Then, this is a valid solution:

upside downtown is magic"


is this true? I'm just quoting you
.-.

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por Admin el Lun Ene 04, 2016 5:33 pm


- Curiosity kills the cat
- Catch a Fire
- Fired Up
- Upside down

curiosity kills the catch to fired upside down

If you check the post again, this is a valid solution.


-upside down
-downtown is magic

upside downtown is magic

This one is also valid.

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por chess1424 el Lun Ene 04, 2016 7:41 pm

With the mentioned above, my implementation got a solution of 122876 length but I can't submit my solution.

Error 500 - Internal Server Error appear. in the website

Other problem is that the input box doesn't accept 122876 characters of length.
Any help ?

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por MSilverio el Lun Ene 04, 2016 8:13 pm

So....
What was the bug again?

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por chess1424 el Lun Ene 04, 2016 8:26 pm

When I click on upload your submission
-Choose the file.
-Select programming language.
-Solution (First bug: I can't paste my entire solution because the input box doesn't accept 122876 characters).
-Then I select upload solution (Second bug: 500 - Internal Server Error appear in the website).

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por MSilverio el Lun Ene 04, 2016 9:08 pm

""" a bug found in the script that validates solutions, which accepts some additional cases not originally considered in the problem description.""""

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Re: IMPORTANT! Deadline extended, bug found!

Mensaje por Admin el Mar Ene 05, 2016 7:04 pm

chess1424 escribió:With the mentioned above,  my implementation got a solution of 122876 length but I can't submit my solution.

Error 500 - Internal Server Error appear. in the website

Other problem is that the input box doesn't accept 122876 characters of length.
Any help ?

Hi,

We are having some performance issues in the checker, that could be the reason of your problem.

Please email to antonio.h.hernandez@oracle.com and include the string of your solution, that way we can test it.

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Re: IMPORTANT! Deadline extended, bug found!

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