anup.kalbalia's blog

Invitation to CodeChef December LunchTime 2015!
By anup.kalbalia, history, 9 years ago, In English

Hello CodeForces Community,

I’d like to invite you to CodeChef December LunchTime at https://www.codechef.com/LTIME31.

Time: 27th December 2015 (1100 hrs) to 27th December 2015 (1400 hrs). (Indian Standard Time — +5:30 GMT) — Check your timezone

Details: https://www.codechef.com/LTIME31

Registration: You just need to have a CodeChef handle to participate. For all those, who are interested and do not have a CodeChef handle, are requested to register in order to participate.

Prizes:

  • Top 10 performers in Global and Indian category will win a cool CodeChef T-shirt. (For those who have not yet got their previous winning, please send an email to winners@codechef.com)

It promises to deliver on an interesting set of algorithmic problems with something for all.

Good Luck! Hope to see you participating!!

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

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9 years ago, # |
← Rev. 2   Vote: I like it +4 Vote: I do not like it

Why the tescase bellow not available in testcases of 1st subtask ? (Weak Testcase in EXNETWRK )

2 1

Proof :

https://www.codechef.com/viewsolution/9024194

https://www.codechef.com/viewsolution/9025230

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    9 years ago, # ^ |
    ← Rev. 2   Vote: I like it 0 Vote: I do not like it

    And I got WA in frist subtask , why ?

    For N =4 and M=4

    1 2

    2 4

    3 4

    1 3

    why this solution give me WA ?

    Really very bad checker !

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

It'll be great if such announcements can be made 1 day in advance.

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

Does that mail id(winners@codechef.com) even work?

I dropped a mail a couple weeks ago but no reply yet.

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9 years ago, # |
← Rev. 3   Vote: I like it +10 Vote: I do not like it

I didn't see any mod in problem 4(Seedlings) but all of the accepted solutions seem to have used (10^9 + 7) as mod.

My solution seemed right to me.Could this be the reason it failed on bigger tests(Of course for some test cases answer will exceed (10^9 + 7))?

Update Yes, mod(10^9 + 7) was required to pass the problem(checked in practice) although it was not stated in the problem statement.

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9 years ago, # |
← Rev. 2   Vote: I like it +3 Vote: I do not like it

When will the practice be opened?

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