JinhaiChen's blog

Who can hack me in 1307D ???
By JinhaiChen, history, 4 years ago, In English

I passed 1307D - Cow and Fields with code which is obviously wrong! Because I solve the promble in this way:

  • if k<7000 using the $$$O(n^2)$$$ algorithm.
  • else use a obviously fake algorithm which should be hacked.

Submission is here : 71566996

Who can hack me?

  • Vote: I like it
  • +16
  • Vote: I do not like it

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4 years ago, # |
  Vote: I like it +53 Vote: I do not like it

Done

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    4 years ago, # ^ |
      Vote: I like it 0 Vote: I do not like it

    Now try hack my $$$O(k^2)$$$: 71334468

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

      I don't think it's possible. If $$$k > \frac{n}{2}$$$, the flag fll is triggered. Otherwise $$$k \le 10^5$$$ and the $$$O(k^2)$$$ part works in 1s, thanks to low constant and pragmas.

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