Invitation to Gym Contest — Alpha VII (By AlgoRave)

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Hello, Codeforces!

I, _bLIC_ and 0x4F5F6F have curated a Solo Practice Contest in the gym, Coding Challenge Alpha VII - by Algorave. It's been one year of AlgoRave and we would like to name the contest as Algoversary. The level of questions is medium. This is for anyone who loves giving contests and solving problems. This contest will be of most interest upto Expert rated coders, but I would also like to invite Div. 1 coders to participate as well. For anyone who wants to practice or just wants to go through the problems can register for our contest here. Hope you will enjoy solving the problems!

I would like to thank:

our problem setters _bLIC_, BitWizz, 0x4F5F6F and myself.
our problem testers _bLIC_, BitWizz, vanshdhawan60 and myself.
myself for the amazing poster design.

Contest Details:

Date/Time: Sep/16/2024 17:30 (Moscow time)
Problems: 6
Duration: 2 hours
Contest Invite: Invitation Link

We hope that this contest, regardless of your background, rating and result, will increase your exposure to competitive programming and make you better than you were yesterday. Have fun!

Note: You can also register for the contest while it is going on. You may want to check out our group for past contests.

Spoiler

UPD1: The registration has started!

UPD2: Congratulations to the winning contestants!

Congratulations to first solves as well!

For Problem F : Thought of going with the contribution of ith as ending of the subarray let for i, we need to find the answer let k be the smaller element before it at [i1 i2 i3 ... ik ] i Then Contribution of i is : i1 + i2 + i3 + .. ik + i + k+1 To find for each i , sum of indices of numbers that are smaller than it in prefix option1 : segtree option2 : wavelet tree One is Giving TLE and other is MLE

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12_Utpal

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