We invite you to participate in CodeChef’s Starters 218, this Wednesday, 24th December, rated for 5 stars (i.e. for users with rating < 2200).
Time: 8:00 PM — 10:00 PM IST
Joining us on the problem setting panel are:
Contest Admin: Shreyan Dominater069 Ray
Setter: Shreyan Dominater069 Ray and Chromate chromate00
Tester and Statement Verifier: Sushil SmolBrain Raaja
Text Editorialist: Nishank IceKnight1093 Suresh
Written editorials will be available for all on discuss.codechef.com. Pro users can find the editorials directly on the problem pages after the contest. The video editorials of the problems will be available only to Pro users.
Also, if you have some original and engaging problem ideas, and you’re interested in them being used in CodeChef's contests, you can share them here. Hope to see you participating.
Good Luck!
Contest starts in 30 minutes.
is site down ? for me it's just a white background with constant loader https://ibb.co/DfNC3Sj3
nice problem set!
Really loved the problems especially "Collartz Conjecture". Though I thought many people would solve it idk why less people solved.
If the last two bits are zero, it "yes". I think a lot of people miss this, like me
Yes!
For the counts notice last 2 digit in div by 4 is 00 so operation makes +4 to number. You don't want switch to odd>3 so either add 4 or do n/2. Also you don't want number divisible by 2 but not by 4. This tells when to do +4 and when n/2