Invitation to CodeChef January Long Challenge 2019 sponsored By ShareChat

general
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@aryanc403 yes, @wxh010910 rejected almost all med-hard+ problem ideas I accepted & thought to use. Seems the next longs will be easier.

After jan18 I posted this comment https://discuss.codechef.com/answer_link/121277/ almost one year passed and it seems I’m unable to solve these issues… Sorry about that quote. It won’t happens again with nobody

Yes, the last cfs were pretty creative.

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Will there be an editorial for the Challenge problem as well?

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Problems which involve finding observations are deemed to have >2.5k ACs.

Especially in 10 days due to the other reasons we know of.