rng_58's blog

By rng_58, history, 5 months ago, In English,

https://r.recruit-jinji.jp/code_fes/us/index.html

Details will be announced in early August. In Japanese website, it says there will be 20 slots for international students.

According to Japanese website, the finals will be 25th-26th in November.

 
 
 
 
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5 months ago, # |
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I hope there are no stupid restrictions like "You may participate no more than X times" or "you should be under Y to be eligible".

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    5 months ago, # ^ |
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    As far as I see the japanese website, This contest opens to only university students. But it seems that there isn't age limit or the number of times limit.

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5 months ago, # |
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Is it rated though?

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4 months ago, # |
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There is information in English now. https://r.recruit-jinji.jp/code_fes/us/

Short summary about qualification and slot distribution:
There will be three qualification rounds.
First round: 5 international + 40 Japanese
Second round: 3 international + 20 Japanese
Third round: 2 international + 20 Japanese
After all qualification rounds 10 more slots for international students distributed according to somehow calculated performance during all 3 rounds (no details provided) and their region:
Africa/Middle East:1
Asia:3
Europe:4
North America:1
Latin America/South Pacific:1

Also you must be unemployed and finish university no more than 4 years ago,

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    4 months ago, # ^ |
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    The qualification system looks inaccurate now, please wait for a while.

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      3 months ago, # ^ |
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      Any update on that? To confuse more in e-mail in "eligibility" part it is also written "Must be in top 100 contestants from Qualification contests A(students living outside Japan are limited to 10), top 60 contestants from Qualification contests B(students living outside Japan are limited to 5), or top 60 contestants from Qualification contests C(students living outside Japan are limited to 5).", but few lines below rules that Um_nik mentioned are written (and I assume these are real ones and I should ignore that eligibility part).

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        3 months ago, # ^ |
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        Here in the "Event Outline" part is some complex procedure to determine the finalists involving irrational numbers... Not sure if it is the correct one though.

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          3 months ago, # ^ |
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          At least it is well-defined... (at least I think so)

          And I think applying the "n qualifier from a region" rule before the "top x qualifiers" rule makes sense.

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3 months ago, # |
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Lol, registration form is terrible. It took me ages to fill it and I was thinking that question about size of my mother's shoes may pop up at any moment.

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    3 months ago, # ^ |
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    Maybe that's the real elimination round?

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3 months ago, # |
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The onsite contest is not open for high school students, right?

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    3 months ago, # ^ |
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    I was wondering the same thing. The bracket that states who is eligible is not very clear to me as I don't understand like half of the options. There was some "graduate school", and I think that the best chances for high school students would be to be part of this category. Could someone tell us?

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      3 months ago, # ^ |
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      Grad school means PhD students.

      From the way I read it, it seems to explicitly mention only university students and above, so it implicitly forbids high school students. It doesn't make sense though.

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        3 months ago, # ^ |
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        It doesn't make sense though.

        Why not? To me it seems like the purpose is to look for workers who are old enough to do internship or a full time.

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          3 months ago, # ^ |
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          Over 18 is old enough. I also know people who worked (in programming) while in high school.

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            3 months ago, # ^ |
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            But maybe it is more likely to find a university student with the right skills than a high school student?

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              3 months ago, # ^ |
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              A high school student that reaches the finals will have the necessary skills as likely as a uni student. Those who don't reach the finals are irrelevant and it costs nothing to let them participate. Therefore, there's no reason not to let them participate.

              Your arguments are valid, but extremely weak.

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                3 months ago, # ^ |
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                Usually "school student that reaches the finals" that has "the necessary skills as likely as a uni student" will go to university and you will not see him next 5 years.

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                  3 months ago, # ^ |
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                  Why would the organisers of a competition for university students not see university students?

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                3 months ago, # ^ |
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                A high school student that reaches the finals will have the necessary skills as likely as a uni student.

                I am not sure about the programming scene in the europe, but I don't think this is true at least in (most of) south east asia. Most of the top competitive programmer I know here only know CP(or at least have minimal developing experience) during their high school.

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                  3 months ago, # ^ |
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                  I only know CP during university, so what?

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                  3 months ago, # ^ |
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                  Most people over here who know something from programming don't know even what CP is. However, what I'm talking about is high school students who are elite to the point of reaching top ~20 worldwide in this contest; these would probably know a lot more than just CP. How many of them are in your sample?

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                  3 months ago, # ^ |
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                  Um_nik, well I guess you are an abnormal data point? I am not saying anything is wrong, I am just guessing what the organizer think. I am sorry if I offend anyone in anyway or if my point is weak.

                  Xellos, probably 0(Sorry, my point about good Competitive programmers should not imply the top 20, my bad). But I think Um_nik have just became a sample! I think I read from quora that I_love_Tanya_Romanova does not know much about dev until recently as well. (of course they would know more than CP, but they may not have the relevant skills the organizer wants?) Just a hypothesis here.

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    3 months ago, # ^ |
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    I think yes (last year's code festival onsite is also not open for high-school student) I guess the reason is the same as TCO's or GCJ's because onsite contest of them is not eligible for under-18. (Also I don't know Topcoder's or GCJ's reason)
    But this is so sad for thousands of people including me, and I can't participate next 3 year's onsite so I hope high-school students will become eligible.

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      3 months ago, # ^ |
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      There are plenty of students around the world who are over 18; an age requirement has nothing to do with school.

      Also, I think TCO and GCJ are open for high school students too.

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        3 months ago, # ^ |
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        I trusted this comment. For example, TCO is eligible for 18 years or older.

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          3 months ago, # ^ |
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          So TCO is open to high school students who are 18 years or older. (I was 19 when graduating. I know people who were 20 when graduating, without failing a grade.)

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3 months ago, # |
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How to D? :D

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    3 months ago, # ^ |
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    Say you are at cell (x, y), if you go to any cell at distance d from (x, y), either x + y changes by (+d or -d) or x - y changes by (+d or -d)

    See tourist's code

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    3 months ago, # ^ |
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    "Xorify" two colorings:

    000111000111...
    00111000111...
    0111000111...
    111000111...
    11000111...
    1000111...
    

    and

    000222000222...
    2000222000222...
    22000222000222...
    222000222000222...
    0222000222000222...
    
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      3 months ago, # ^ |
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      Any proof for that?

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        3 months ago, # ^ |
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           *   
          * *  
         *   * 
        *  x  *
         *   * 
          * *  
           *   
        

        Here is a representation of all cells which are exactly d away from x in our metric. Each of the stars is either on a edge of the diamond (the second coloring distinguishes it from x) or on a  /  edge (the first one distinguishes).

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7 weeks ago, # |
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Looks like no one calculated unofficial list of finalists (and there is no official list too).

1+1. LHiC — Europe 1st
1+2. tourist — Europe 2nd
1+3. apiad (moejy0viiiiiv?) — Asia 1st
2+2. Factorio — Asia 2nd
3+1. dotorya — Asia 3rd
3+2. ksun48 — North America 1st
4+2. Um_nik — Europe 3rd
6+1. sevenkplus — 1st
4+3. Marcin_smu — Europe 4th
7+1. KAN — 2nd
5+2. liympanda — 3rd
8+1. miaom — 4th
5+3. HellKitsune — 5th
7+2. cospleermusora (V--o_o--V?) — 6th
6+3. shik — 7th
11+1. FizzyDavid — 8th
8+2. desert97 — 9th
12+1. Merkurev — 10th
8+3. Reyna — Africa and Middle East 1st
29+2. jerrym (jerry?) — South Pacific and Latin America 1st

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    7 weeks ago, # ^ |
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    AFAIK, miaom and FizzyDavid are high school student. liympanda has worked in Google for several years. They are both ineligible.

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      7 weeks ago, # ^ |
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      Confirmed. I'm not eligible for onsite, enjoyed in the problems very much :)

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    6 weeks ago, # ^ |
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    Sadly I won't be able to go since the finals are too close to my end-of-year exams.

    Looking forward to up-solving the problems though!