Zlobober's blog

Facebook Hacker Cup 2016 Final Round
By Zlobober, history, 9 years ago, In English

Hacker Cup Final round is starting in 5 minutes. List of finalists: http://codeforces.net/blog/entry/23177

You can (probably) find the standings somewhere at http://facebook.com/hackercup

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  • +97
  • Vote: I do not like it

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9 years ago, # |
  Vote: I like it +27 Vote: I do not like it

Serious spoilers below!

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9 years ago, # |
← Rev. 2   Vote: I like it +25 Vote: I do not like it

Is it only me or the scoreboard isn't showing the names correctly?

Here it is

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    9 years ago, # ^ |
      Vote: I like it +5 Vote: I do not like it

    me too :(

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    9 years ago, # ^ |
      Vote: I like it +15 Vote: I do not like it

    Their CSS is broken because the table is too wide. Remove "._42ef { overflow: hidden; }" in dev console (or alternatively add "._47zq ._47zr {width: 10px;}"), then you'll get smth readable, though not nice.

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9 years ago, # |
  Vote: I like it +36 Vote: I do not like it

rng_58 won the tournament first time.Congrats to him. He will be back for topcoder open so it will be interesting this year.

Looks like this year problem was tough or error prone.

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9 years ago, # |
  Vote: I like it +84 Vote: I do not like it

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9 years ago, # |
  Vote: I like it +86 Vote: I do not like it

Did anything odd happen to bmerry? It's quite surprising to see him fail all 6 submissions.

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    9 years ago, # ^ |
      Vote: I like it +72 Vote: I do not like it

    If I recall correctly, Snake and Ladder was a tiny error, Rainbow String was an overflow where he wasn't using longs, and his solution to Grundy Graph wasn't real, it was just an end-of-contest submission (didn't work on samples).

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    9 years ago, # ^ |
    ← Rev. 2   Vote: I like it +182 Vote: I do not like it

    Yeah, that's probably my worst performance ever:

    • Snake and Ladder: I didn't handle the N=1 case (or more generally, 2 empty cells on the same rung)
    • Boomerang Crews: My algorithm was bogus, but passed all the samples.
    • Grundy Graph: not a real submission
    • RNG: an error in the formulae for expected time to respawn when trying to move a set distance
    • Maximinimax: initial range for binary search was too small (the given graph can't have minimax flow more than 2000000, but the augmented graph can)
    • Rainbow String: integer overflow
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9 years ago, # |
  Vote: I like it +20 Vote: I do not like it

Whoah, nobody wants to give in in a contribution battle! 4 blogs from 3 interested parties in less than 24 hours!

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