Aparoksha is back with the flagship coding event — Alkhwarizm

2 years back, we launched the first ever External Rated Contest on Codechef — Alkhwarizm 2017.
Last year's Alkhwarizm 2018 was a great success with over 1100 people participating in the contest.
If you have the appetite for algorithmic problem solving, then don't miss it out!

Contest link is here — Alkhwarizm 2019

It will be a 5 hour individual contest with algorithmic problem-set of diverse nature, and is open for both students as well as professionals.
The contest will comprise 10 problems, and will be rated for both divisions.

The prizes include cash prizes worth INR 20,000, along with Codechef Laddus.

• For Indian participants:
  • Top 10 from ranklist will receive 300 laddus.
  • Additionally, they get bonus laddus (Bonus = n — contest rank) where 'n' is 11 for short contests.
• For Global participants:
  • Top 10 from ranklist will receive 300 laddus.
  • Additionally, they get bonus (Bonus = n — contest rank) where 'n' is 11 for short contests.
• For combined participants:
  • Random Laddus to any 5 users: 200 laddus.
  • First to solve each problem individually: 100 laddus.
  • Country wise participation: Top 10, 20 and 30 will get 30, 40 and 50 laddus as per participation.
  • Country wise performance: 200, 250, 300 laddus as per performance.

So be ready to have a nail-biting experience on April 7, 2019 at 21:00 IST

The problem have been set and tested by satylogin, blake_786, shivamg_isc, priyanshupkm, modi_aashu2 and fLUKEmASTER.

Some of our previous contests — CodeRed 2019, Alkhwarizm 2018, CodeRed 2018, Alkhwarizm 2017, and HumbleFool Cup 2016.

Register here to be eligible to sit on the Iron Throne.

Good luck everyone !

Upd 1 — The contest is about to begin in 1.5 hours.
Upd 2 — The contest is over. Thanks for the huge participation.
And we are sorry for this unbalanced contest.
The initial version of the contest was perfectly balanced. But, each problem of external rated contest has to be reviewed by few people from Codechef.
The initial version of the contest was told to be made rated just for Div 2.
The problem right now with 3rd least number of submissions was marked by them as an EASY-MEDIUM problem, and similarly were the others.
We tried to convince them to make the contest rated for all, as we felt the contest was indeed balanced.
But, finally in order to make the contest rated for all, we had to add harder elements to most of the problems.

We in a way could have agreed to keep the contest rated for just div 2, but that would remain unbalanced for them similarly.
Best solution would have been to keep the contest unrated.
We are sorry again, but please try to understand that the error was not on our part entirely.

Thanks !

The hints will be posted soon.