Re: [gcj] Finding another competitor on the score board?

[Bartholomew Furrow]

Hey Samuel! I answered you in chat as well, but in case anyone else is
wondering:

I totally understand the concern. A couple of things about that: I don't
work at Google anymore, so I'm the wrong person to ask to make a change.

I can tell you about why we made the decision originally though. It boils
down to this: we chose the time we thought most competitors could compete.
Late Saturday night is a better time than late Sunday night for people who
have to work on Monday. That's an issue for Japan, NZ, and other places
close to the date line on the west. I remember other considerations -- I
know it wasn't a perfect solution for holy days, for example, since Shabbat
(Saturday) is a holy day in Judaism -- but I think that was the major one.

Please bear in mind that I don't work at Google anymore, so if I've said
something incorrect or impolitic then please don't blame them. :-)

Bartholomew

On Sat, Apr 7, 2018 at 8:50 PM Samuel Jawahar  wrote:

> Hello sir,so many people have to work on Saturday too,if possible please
> give heigher priority to Sunday to conduct exam
> Regards
> Samuel
>
> On Sun, Apr 8, 2018, 08:06 Bartholomew Furrow  wrote:
>
>> It's missing for now, though either Pablo or Ian mentioned that it's on
>> their list of things to add. I'm guessing things that impact the
>> competition more directly will come first.
>>
>> On Sat, Apr 7, 2018 at 7:45 AM meir  wrote:
>>
>>> I seem unable to find a way to look up another player in the scoreboard.
>>> I used to do this, to track both real life friends and other notable
>>> competitors I become aware of.
>>> Is this feature missing from current incarnation? or am I just not
>>> seeing it?
>>>
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Re: [gcj] A problem ocurred. try again later. But then the solutions appear in submissions

[Samuel Jawahar]

it was very slow yesterday

On Sat, Apr 7, 2018 at 8:07 PM, newbie007  wrote:

> after some minutes the solutions are in submissions, even though it says a
> "problem occurred"
>
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[gcj] The Qual Round is over!

[newbie007]

Usually in the qualification round the first two problems are simple and with 
no tricks.

I got A and B correct for the small data sets, so I assumed it was fine.

But then wrong for A large and time exceed for B large. Oo

Probably I was too careless, but I think CodeJam missed the qualification round 
purpose this year. 

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Re: [gcj] The Qual Round is over!

[Felix Voituret]

Time Limit Exceed i think ? 

Envoyé de mon iPhone

> Le 8 avr. 2018 à 22:38, Leandro Coutinho  a écrit :
> 
> Thank you Bartholomew !
> 
> What is TLE?
> Temporal lobe epilepsy? :D
> 
> Em Dom, 8 de abr de 2018 17:27, Bartholomew Furrow  
> escreveu:
>> I have a few thoughts, and I want to emphasize once again that although I 
>> used to be on the Code Jam team, I no longer am.
>> 
>> First: I don't think Hidden sets are really run after the contest. At the 
>> end of the Qualification Round, all scores were visible immediately. We used 
>> to judge Large inputs as they were submitted and just not show the results 
>> until the end, and I'm assuming that's true with the new platform.
>> 
>> Second: "Hidden/large should be about performance" is a reasonable 
>> philosophy, but it isn't a philosophy that Code Jam has held to 
>> historically. You can find lots of problems where there's a simple algorithm 
>> that would be correct on the Small, and incorrect (not just slow) on the 
>> Large. With that said, all data sets are designed to test the program as 
>> much as possible, so if your code was broken by the Invisible input in a way 
>> that it could have been broken on the Visible input, that's certainly 
>> something they'll be trying to avoid.
>> 
>> Third, about whether we should know whether our submissions timed out or not 
>> on Hidden sets: It's certainly true that that's a difference, though as 
>> Felix points out it isn't like you could do anything about it before unless 
>> you acted very fast. You just knew you didn't have the points, which 
>> typically doesn't matter all that much.
>> 
>> You might be interested to hear that when we first designed the small/large 
>> input set system, we viewed the ability to see TLEs as a down-side of the 
>> new system, when for Large inputs you weren't supposed to know whether you 
>> got it. It's interesting to see it come around the other way!
>> 
>> I would like to see the running time for my Visible submissions, since right 
>> now I don't have a sense for how quickly anything runs on the server, other 
>> than that making a 15x15 square on the Interactive problem for 100 inputs 
>> takes more than 10 seconds.
>> 
>> Cheers,
>> Bartholomew
>> 
>>> On Sun, Apr 8, 2018 at 2:08 PM Leandro Coutinho  
>>> wrote:
>>> Hmm good point.
>>> 
>>> So CodeJam is worst now.
>>> 
>>> Worst is not the best word. The previous system was really good.
>>> 
>>> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG  
>>> escreveu:
 The hidden test is run after the contents ends. How is it possible to tell 
 you that your program will finish or not if it was not actually run?
 On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho  
 wrote:
> Good point.
> 
> They should let us know if the program finished on time. They can do this 
> without saying that it is correct or not.
> 
> The other problem is about correctness. Hidden/large should be about 
> performance ...
> 
> Em Dom, 8 de abr de 2018 16:43, Felix Voituret  
> escreveu:
>> Well the real difference here is that you do not know if the time limit 
>> was respected for the hidden dataset (previously large). So you really 
>> has to ensure required points from visible one that you can control 
>> unless you estimate correctly time complexity regarding dataset limits.
>> 
>> Envoyé de mon iPhone
>> 
>> > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
>> >
>> > Usually in the qualification round the first two problems are simple 
>> > and with no tricks.
>> >
>> > I got A and B correct for the small data sets, so I assumed it was 
>> > fine.
>> >
>> > But then wrong for A large and time exceed for B large. Oo
>> >
>> > Probably I was too careless, but I think CodeJam missed the 
>> > qualification round purpose this year.
>> >
>> > --
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>> 
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Re: [gcj] The Qual Round is over!

[Xiongqi ZHANG]

The hidden test is run after the contents ends. How is it possible to tell
you that your program will finish or not if it was not actually run?
On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho 
wrote:

> Good point.
>
> They should let us know if the program finished on time. They can do this
> without saying that it is correct or not.
>
> The other problem is about correctness. Hidden/large should be about
> performance ...
>
> Em Dom, 8 de abr de 2018 16:43, Felix Voituret 
> escreveu:
>
>> Well the real difference here is that you do not know if the time limit
>> was respected for the hidden dataset (previously large). So you really has
>> to ensure required points from visible one that you can control unless you
>> estimate correctly time complexity regarding dataset limits.
>>
>> Envoyé de mon iPhone
>>
>> > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
>> >
>> > Usually in the qualification round the first two problems are simple
>> and with no tricks.
>> >
>> > I got A and B correct for the small data sets, so I assumed it was fine.
>> >
>> > But then wrong for A large and time exceed for B large. Oo
>> >
>> > Probably I was too careless, but I think CodeJam missed the
>> qualification round purpose this year.
>> >
>> > --
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>> Groups "Google Code Jam" group.
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>> https://groups.google.com/d/msgid/google-code/1c05cf0e-d772-4b96-879c-b61535bd9145%40googlegroups.com
>> .
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>>
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Re: [gcj] The Qual Round is over!

[Leandro Coutinho]

Hmm good point.

So CodeJam is worst now.

Worst is not the best word. The previous system was really good.

Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG 
escreveu:

> The hidden test is run after the contents ends. How is it possible to tell
> you that your program will finish or not if it was not actually run?
> On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho 
> wrote:
>
>> Good point.
>>
>> They should let us know if the program finished on time. They can do this
>> without saying that it is correct or not.
>>
>> The other problem is about correctness. Hidden/large should be about
>> performance ...
>>
>> Em Dom, 8 de abr de 2018 16:43, Felix Voituret 
>> escreveu:
>>
>>> Well the real difference here is that you do not know if the time limit
>>> was respected for the hidden dataset (previously large). So you really has
>>> to ensure required points from visible one that you can control unless you
>>> estimate correctly time complexity regarding dataset limits.
>>>
>>> Envoyé de mon iPhone
>>>
>>> > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
>>> >
>>> > Usually in the qualification round the first two problems are simple
>>> and with no tricks.
>>> >
>>> > I got A and B correct for the small data sets, so I assumed it was
>>> fine.
>>> >
>>> > But then wrong for A large and time exceed for B large. Oo
>>> >
>>> > Probably I was too careless, but I think CodeJam missed the
>>> qualification round purpose this year.
>>> >
>>> > --
>>> > You received this message because you are subscribed to the Google
>>> Groups "Google Code Jam" group.
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>>> .
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>>>
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Re: [gcj] The Qual Round is over!

[Bartholomew Furrow]

I have a few thoughts, and I want to emphasize once again that although I
used to be on the Code Jam team, I no longer am.

First: I don't think Hidden sets are really run after the contest. At the
end of the Qualification Round, all scores were visible immediately. We
used to judge Large inputs as they were submitted and just not show the
results until the end, and I'm assuming that's true with the new platform.

Second: "Hidden/large should be about performance" is a reasonable
philosophy, but it isn't a philosophy that Code Jam has held to
historically. You can find lots of problems where there's a simple
algorithm that would be correct on the Small, and incorrect (not just slow)
on the Large. With that said, all data sets are designed to test the
program as much as possible, so if your code was broken by the Invisible
input in a way that it *could* have been broken on the Visible input,
that's certainly something they'll be trying to avoid.

Third, about whether we should know whether our submissions timed out or
not on Hidden sets: It's certainly true that that's a difference, though as
Felix points out it isn't like you could *do* anything about it before
unless you acted very fast. You just knew you didn't have the points, which
typically doesn't matter all *that* much.

You might be interested to hear that when we first designed the small/large
input set system, we viewed the ability to see TLEs as a down-side of the
new system, when for Large inputs you weren't supposed to know whether you
got it. It's interesting to see it come around the other way!

I *would* like to see the running time for my Visible submissions, since
right now I don't have a sense for how quickly anything runs on the server,
other than that making a 15x15 square on the Interactive problem for 100
inputs takes more than 10 seconds.

Cheers,
Bartholomew

On Sun, Apr 8, 2018 at 2:08 PM Leandro Coutinho 
wrote:

> Hmm good point.
>
> So CodeJam is worst now.
>
> Worst is not the best word. The previous system was really good.
>
> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG 
> escreveu:
>
>> The hidden test is run after the contents ends. How is it possible to
>> tell you that your program will finish or not if it was not actually run?
>> On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho 
>> wrote:
>>
>>> Good point.
>>>
>>> They should let us know if the program finished on time. They can do
>>> this without saying that it is correct or not.
>>>
>>> The other problem is about correctness. Hidden/large should be about
>>> performance ...
>>>
>>> Em Dom, 8 de abr de 2018 16:43, Felix Voituret 
>>> escreveu:
>>>
 Well the real difference here is that you do not know if the time limit
 was respected for the hidden dataset (previously large). So you really has
 to ensure required points from visible one that you can control unless you
 estimate correctly time complexity regarding dataset limits.

 Envoyé de mon iPhone

 > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
 >
 > Usually in the qualification round the first two problems are simple
 and with no tricks.
 >
 > I got A and B correct for the small data sets, so I assumed it was
 fine.
 >
 > But then wrong for A large and time exceed for B large. Oo
 >
 > Probably I was too careless, but I think CodeJam missed the
 qualification round purpose this year.
 >
 > --
 > You received this message because you are subscribed to the Google
 Groups "Google Code Jam" group.
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 send an email to google-code+unsubscr...@googlegroups.com.
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 .
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Re: [gcj] Finding another competitor on the score board?

[Bartholomew Furrow]

Right now I work at home, and my employers are both under the age of 6. :-)

On Sun, Apr 8, 2018 at 1:01 PM Samuel Jawahar  wrote:

> Thanks a lot sir,where are you working
>
> On Sun, Apr 8, 2018, 21:33 Bartholomew Furrow  wrote:
>
>> Hey Samuel! I answered you in chat as well, but in case anyone else is
>> wondering:
>>
>> I totally understand the concern. A couple of things about that: I don't
>> work at Google anymore, so I'm the wrong person to ask to make a change.
>>
>> I can tell you about why we made the decision originally though. It boils
>> down to this: we chose the time we thought most competitors could compete.
>> Late Saturday night is a better time than late Sunday night for people who
>> have to work on Monday. That's an issue for Japan, NZ, and other places
>> close to the date line on the west. I remember other considerations -- I
>> know it wasn't a perfect solution for holy days, for example, since Shabbat
>> (Saturday) is a holy day in Judaism -- but I think that was the major one.
>>
>> Please bear in mind that I don't work at Google anymore, so if I've said
>> something incorrect or impolitic then please don't blame them. :-)
>>
>> Bartholomew
>>
>> On Sat, Apr 7, 2018 at 8:50 PM Samuel Jawahar 
>> wrote:
>>
>>> Hello sir,so many people have to work on Saturday too,if possible please
>>> give heigher priority to Sunday to conduct exam
>>> Regards
>>> Samuel
>>>
>>> On Sun, Apr 8, 2018, 08:06 Bartholomew Furrow  wrote:
>>>
 It's missing for now, though either Pablo or Ian mentioned that it's on
 their list of things to add. I'm guessing things that impact the
 competition more directly will come first.

 On Sat, Apr 7, 2018 at 7:45 AM meir  wrote:

> I seem unable to find a way to look up another player in the
> scoreboard.
> I used to do this, to track both real life friends and other notable
> competitors I become aware of.
> Is this feature missing from current incarnation? or am I just not
> seeing it?
>
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Re: [gcj] The Qual Round is over!

[Felix Voituret]

It isn’t « worst » at all. It is different, bringing new feature at the same 
time. I got tricked by the large dataset in B too, and doesn’t have time this 
week end to check other problems, that alright, I will be aware of that next 
year so this is not a problem. We just have to change old habits :)

Envoyé de mon iPhone

> Le 8 avr. 2018 à 22:08, Leandro Coutinho  a écrit :
> 
> Hmm good point.
> 
> So CodeJam is worst now.
> 
> Worst is not the best word. The previous system was really good.
> 
> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG  
> escreveu:
>> The hidden test is run after the contents ends. How is it possible to tell 
>> you that your program will finish or not if it was not actually run?
>> On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho  
>> wrote:
>>> Good point.
>>> 
>>> They should let us know if the program finished on time. They can do this 
>>> without saying that it is correct or not.
>>> 
>>> The other problem is about correctness. Hidden/large should be about 
>>> performance ...
>>> 
>>> Em Dom, 8 de abr de 2018 16:43, Felix Voituret  
>>> escreveu:
 Well the real difference here is that you do not know if the time limit 
 was respected for the hidden dataset (previously large). So you really has 
 to ensure required points from visible one that you can control unless you 
 estimate correctly time complexity regarding dataset limits.
 
 Envoyé de mon iPhone
 
 > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
 >
 > Usually in the qualification round the first two problems are simple and 
 > with no tricks.
 >
 > I got A and B correct for the small data sets, so I assumed it was fine.
 >
 > But then wrong for A large and time exceed for B large. Oo
 >
 > Probably I was too careless, but I think CodeJam missed the 
 > qualification round purpose this year.
 >
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Re: [gcj] Finding another competitor on the score board?

[Samuel Jawahar]

Thanks a lot sir,where are you working

On Sun, Apr 8, 2018, 21:33 Bartholomew Furrow  wrote:

> Hey Samuel! I answered you in chat as well, but in case anyone else is
> wondering:
>
> I totally understand the concern. A couple of things about that: I don't
> work at Google anymore, so I'm the wrong person to ask to make a change.
>
> I can tell you about why we made the decision originally though. It boils
> down to this: we chose the time we thought most competitors could compete.
> Late Saturday night is a better time than late Sunday night for people who
> have to work on Monday. That's an issue for Japan, NZ, and other places
> close to the date line on the west. I remember other considerations -- I
> know it wasn't a perfect solution for holy days, for example, since Shabbat
> (Saturday) is a holy day in Judaism -- but I think that was the major one.
>
> Please bear in mind that I don't work at Google anymore, so if I've said
> something incorrect or impolitic then please don't blame them. :-)
>
> Bartholomew
>
> On Sat, Apr 7, 2018 at 8:50 PM Samuel Jawahar 
> wrote:
>
>> Hello sir,so many people have to work on Saturday too,if possible please
>> give heigher priority to Sunday to conduct exam
>> Regards
>> Samuel
>>
>> On Sun, Apr 8, 2018, 08:06 Bartholomew Furrow  wrote:
>>
>>> It's missing for now, though either Pablo or Ian mentioned that it's on
>>> their list of things to add. I'm guessing things that impact the
>>> competition more directly will come first.
>>>
>>> On Sat, Apr 7, 2018 at 7:45 AM meir  wrote:
>>>
 I seem unable to find a way to look up another player in the scoreboard.
 I used to do this, to track both real life friends and other notable
 competitors I become aware of.
 Is this feature missing from current incarnation? or am I just not
 seeing it?

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Re: [gcj] The Qual Round is over!

[Leandro Coutinho]

Thank you Bartholomew !

What is TLE?
*Temporal lobe epilepsy? :D*

Em Dom, 8 de abr de 2018 17:27, Bartholomew Furrow 
escreveu:

> I have a few thoughts, and I want to emphasize once again that although I
> used to be on the Code Jam team, I no longer am.
>
> First: I don't think Hidden sets are really run after the contest. At the
> end of the Qualification Round, all scores were visible immediately. We
> used to judge Large inputs as they were submitted and just not show the
> results until the end, and I'm assuming that's true with the new platform.
>
> Second: "Hidden/large should be about performance" is a reasonable
> philosophy, but it isn't a philosophy that Code Jam has held to
> historically. You can find lots of problems where there's a simple
> algorithm that would be correct on the Small, and incorrect (not just slow)
> on the Large. With that said, all data sets are designed to test the
> program as much as possible, so if your code was broken by the Invisible
> input in a way that it *could* have been broken on the Visible input,
> that's certainly something they'll be trying to avoid.
>
> Third, about whether we should know whether our submissions timed out or
> not on Hidden sets: It's certainly true that that's a difference, though as
> Felix points out it isn't like you could *do* anything about it before
> unless you acted very fast. You just knew you didn't have the points, which
> typically doesn't matter all *that* much.
>
> You might be interested to hear that when we first designed the
> small/large input set system, we viewed the ability to see TLEs as a
> down-side of the new system, when for Large inputs you weren't supposed to
> know whether you got it. It's interesting to see it come around the other
> way!
>
> I *would* like to see the running time for my Visible submissions, since
> right now I don't have a sense for how quickly anything runs on the server,
> other than that making a 15x15 square on the Interactive problem for 100
> inputs takes more than 10 seconds.
>
> Cheers,
> Bartholomew
>
> On Sun, Apr 8, 2018 at 2:08 PM Leandro Coutinho 
> wrote:
>
>> Hmm good point.
>>
>> So CodeJam is worst now.
>>
>> Worst is not the best word. The previous system was really good.
>>
>> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG 
>> escreveu:
>>
>>> The hidden test is run after the contents ends. How is it possible to
>>> tell you that your program will finish or not if it was not actually run?
>>> On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho <
>>> lescoutinh...@gmail.com> wrote:
>>>
 Good point.

 They should let us know if the program finished on time. They can do
 this without saying that it is correct or not.

 The other problem is about correctness. Hidden/large should be about
 performance ...

 Em Dom, 8 de abr de 2018 16:43, Felix Voituret <
 felix.voitu...@gmail.com> escreveu:

> Well the real difference here is that you do not know if the time
> limit was respected for the hidden dataset (previously large). So you
> really has to ensure required points from visible one that you can control
> unless you estimate correctly time complexity regarding dataset limits.
>
> Envoyé de mon iPhone
>
> > Le 8 avr. 2018 à 20:29, newbie007  a écrit
> :
> >
> > Usually in the qualification round the first two problems are simple
> and with no tricks.
> >
> > I got A and B correct for the small data sets, so I assumed it was
> fine.
> >
> > But then wrong for A large and time exceed for B large. Oo
> >
> > Probably I was too careless, but I think CodeJam missed the
> qualification round purpose this year.
> >
> > --
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Re: [gcj] The Qual Round is over!

[Xiongqi ZHANG]

Previously you also had to estimate the runtime for your large submission.
If you started downloading the input file for large submission, and
couldn’t finish before running out of time, you still lose points.
The new system however, allows you to submit again if you later find a
better solution that no longer time out on large data set.
On Sun, Apr 8, 2018 at 1:08 PM Leandro Coutinho 
wrote:

> Hmm good point.
>
> So CodeJam is worst now.
>
> Worst is not the best word. The previous system was really good.
>
> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG 
> escreveu:
>
>> The hidden test is run after the contents ends. How is it possible to
>> tell you that your program will finish or not if it was not actually run?
>> On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho 
>> wrote:
>>
>>> Good point.
>>>
>>> They should let us know if the program finished on time. They can do
>>> this without saying that it is correct or not.
>>>
>>> The other problem is about correctness. Hidden/large should be about
>>> performance ...
>>>
>>> Em Dom, 8 de abr de 2018 16:43, Felix Voituret 
>>> escreveu:
>>>
 Well the real difference here is that you do not know if the time limit
 was respected for the hidden dataset (previously large). So you really has
 to ensure required points from visible one that you can control unless you
 estimate correctly time complexity regarding dataset limits.

 Envoyé de mon iPhone

 > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
 >
 > Usually in the qualification round the first two problems are simple
 and with no tricks.
 >
 > I got A and B correct for the small data sets, so I assumed it was
 fine.
 >
 > But then wrong for A large and time exceed for B large. Oo
 >
 > Probably I was too careless, but I think CodeJam missed the
 qualification round purpose this year.
 >
 > --
 > You received this message because you are subscribed to the Google
 Groups "Google Code Jam" group.
 > To unsubscribe from this group and stop receiving emails from it,
 send an email to google-code+unsubscr...@googlegroups.com.
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 > To view this discussion on the web visit
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 .
 > For more options, visit https://groups.google.com/d/optout.

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Re: [gcj] The Qual Round is over!

[Felix Voituret]

« You can find lots of problems where there's a simple algorithm that would be 
correct on the Small, and incorrect (not just slow) on the Large. » 

The first problem of this round is typical as input structures are differents 
for visible / hidden datasets.

Well the only thing that doesn’t appear intuitive when you are used to the old 
system is when you are writing fast and dirty solution for small and then think 
about the large to be more efficient. You can totally do that here since you 
can submit as much as you want but then will it count as penalty if you fail 
hidden at first ? Then succeed at the second attempt ? 

Envoyé de mon iPhone

> Le 8 avr. 2018 à 22:26, Bartholomew Furrow  a écrit :
> 
> You can find lots of problems where there's a simple algorithm that would be 
> correct on the Small, and incorrect (not just slow) on the Large.

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Re: [gcj] The Qual Round is over!

[Bartholomew Furrow]

Yes! Time Limit Exceeded. It's an acronym from the UVA online judge, and/or
TopCoder. I admit that I was curious to see if it would be recognized. :-)

Felix: That's a really good point. I had half of that realization during
the round about D, and I'm glad that you expressed it so clearly.

I guess that if you pass the Visible set, then you're always "trying" the
Hidden set, which means that in some sense it's reasonable that you'll get
penalty time for it. I suppose they could add an "Advanced Options" button
to let you submit only on a subset of input sets, but I think it isn't
worth it. The only difference from before, then, is the 4 minutes. Not too
bad an extra cost to pay on a move that was always a strategic choice that
needed to be made carefully.

This is reminding me of 2016's Round 2
, where I
realized with two minutes left in the contest that my solution for the
Small might work for the Large, and ended up winning a t-shirt when it did.
Imagine if you solved a Hidden input unexpectedly! I'm sure it will happen
to someone this year.

On Sun, Apr 8, 2018 at 2:41 PM Felix Voituret 
wrote:

> Time Limit Exceed i think ?
>
> Envoyé de mon iPhone
>
> Le 8 avr. 2018 à 22:38, Leandro Coutinho  a
> écrit :
>
> Thank you Bartholomew !
>
> What is TLE?
> *Temporal lobe epilepsy? :D*
>
> Em Dom, 8 de abr de 2018 17:27, Bartholomew Furrow 
> escreveu:
>
>> I have a few thoughts, and I want to emphasize once again that although I
>> used to be on the Code Jam team, I no longer am.
>>
>> First: I don't think Hidden sets are really run after the contest. At the
>> end of the Qualification Round, all scores were visible immediately. We
>> used to judge Large inputs as they were submitted and just not show the
>> results until the end, and I'm assuming that's true with the new platform.
>>
>> Second: "Hidden/large should be about performance" is a reasonable
>> philosophy, but it isn't a philosophy that Code Jam has held to
>> historically. You can find lots of problems where there's a simple
>> algorithm that would be correct on the Small, and incorrect (not just slow)
>> on the Large. With that said, all data sets are designed to test the
>> program as much as possible, so if your code was broken by the Invisible
>> input in a way that it *could* have been broken on the Visible input,
>> that's certainly something they'll be trying to avoid.
>>
>> Third, about whether we should know whether our submissions timed out or
>> not on Hidden sets: It's certainly true that that's a difference, though as
>> Felix points out it isn't like you could *do* anything about it before
>> unless you acted very fast. You just knew you didn't have the points, which
>> typically doesn't matter all *that* much.
>>
>> You might be interested to hear that when we first designed the
>> small/large input set system, we viewed the ability to see TLEs as a
>> down-side of the new system, when for Large inputs you weren't supposed to
>> know whether you got it. It's interesting to see it come around the other
>> way!
>>
>> I *would* like to see the running time for my Visible submissions, since
>> right now I don't have a sense for how quickly anything runs on the server,
>> other than that making a 15x15 square on the Interactive problem for 100
>> inputs takes more than 10 seconds.
>>
>> Cheers,
>> Bartholomew
>>
>> On Sun, Apr 8, 2018 at 2:08 PM Leandro Coutinho 
>> wrote:
>>
>>> Hmm good point.
>>>
>>> So CodeJam is worst now.
>>>
>>> Worst is not the best word. The previous system was really good.
>>>
>>> Em Dom, 8 de abr de 2018 17:04, Xiongqi ZHANG 
>>> escreveu:
>>>
 The hidden test is run after the contents ends. How is it possible to
 tell you that your program will finish or not if it was not actually run?
 On Sun, Apr 8, 2018 at 12:56 PM Leandro Coutinho <
 lescoutinh...@gmail.com> wrote:

> Good point.
>
> They should let us know if the program finished on time. They can do
> this without saying that it is correct or not.
>
> The other problem is about correctness. Hidden/large should be about
> performance ...
>
> Em Dom, 8 de abr de 2018 16:43, Felix Voituret <
> felix.voitu...@gmail.com> escreveu:
>
>> Well the real difference here is that you do not know if the time
>> limit was respected for the hidden dataset (previously large). So you
>> really has to ensure required points from visible one that you can 
>> control
>> unless you estimate correctly time complexity regarding dataset limits.
>>
>> Envoyé de mon iPhone
>>
>> > Le 8 avr. 2018 à 20:29, newbie007  a
>> écrit :
>> >
>> > Usually in the qualification round the first two problems are
>> simple and with no tricks.
>> >
>> > I got A and 

Re: [gcj] Finding another competitor on the score board?

[Samuel Jawahar]

Oh really great sir

On Mon, Apr 9, 2018, 01:57 Bartholomew Furrow  wrote:

> Right now I work at home, and my employers are both under the age of 6. :-)
>
> On Sun, Apr 8, 2018 at 1:01 PM Samuel Jawahar 
> wrote:
>
>> Thanks a lot sir,where are you working
>>
>> On Sun, Apr 8, 2018, 21:33 Bartholomew Furrow  wrote:
>>
>>> Hey Samuel! I answered you in chat as well, but in case anyone else is
>>> wondering:
>>>
>>> I totally understand the concern. A couple of things about that: I don't
>>> work at Google anymore, so I'm the wrong person to ask to make a change.
>>>
>>> I can tell you about why we made the decision originally though. It
>>> boils down to this: we chose the time we thought most competitors could
>>> compete. Late Saturday night is a better time than late Sunday night for
>>> people who have to work on Monday. That's an issue for Japan, NZ, and other
>>> places close to the date line on the west. I remember other considerations
>>> -- I know it wasn't a perfect solution for holy days, for example, since
>>> Shabbat (Saturday) is a holy day in Judaism -- but I think that was the
>>> major one.
>>>
>>> Please bear in mind that I don't work at Google anymore, so if I've said
>>> something incorrect or impolitic then please don't blame them. :-)
>>>
>>> Bartholomew
>>>
>>> On Sat, Apr 7, 2018 at 8:50 PM Samuel Jawahar 
>>> wrote:
>>>
 Hello sir,so many people have to work on Saturday too,if possible
 please give heigher priority to Sunday to conduct exam
 Regards
 Samuel

 On Sun, Apr 8, 2018, 08:06 Bartholomew Furrow  wrote:

> It's missing for now, though either Pablo or Ian mentioned that it's
> on their list of things to add. I'm guessing things that impact the
> competition more directly will come first.
>
> On Sat, Apr 7, 2018 at 7:45 AM meir  wrote:
>
>> I seem unable to find a way to look up another player in the
>> scoreboard.
>> I used to do this, to track both real life friends and other notable
>> competitors I become aware of.
>> Is this feature missing from current incarnation? or am I just not
>> seeing it?
>>
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Re: [gcj] The Qual Round is over!

[Samuel Jawahar]

You can know by the icon they disply,if it ? And displying NOT this
message"testing skiped"

On Mon, Apr 9, 2018, 01:13 Felix Voituret  wrote:

> Well the real difference here is that you do not know if the time limit
> was respected for the hidden dataset (previously large). So you really has
> to ensure required points from visible one that you can control unless you
> estimate correctly time complexity regarding dataset limits.
>
> Envoyé de mon iPhone
>
> > Le 8 avr. 2018 à 20:29, newbie007  a écrit :
> >
> > Usually in the qualification round the first two problems are simple and
> with no tricks.
> >
> > I got A and B correct for the small data sets, so I assumed it was fine.
> >
> > But then wrong for A large and time exceed for B large. Oo
> >
> > Probably I was too careless, but I think CodeJam missed the
> qualification round purpose this year.
> >
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