The following 3 questions were asked and are part of an ongoing contest: https://iymc.info/data/Pre-Final-Round-Problems-2018-x3285s7f2.pdf
I did not realize this yesterday, but upon going through the Pre-Final round problems, I discovered a user posting the problems here, violating their policy: "It is not allowed to work in groups on the problems. Help or assistance from teachers, friends, family, or the internet is prohibited. Cheating will result in immediate disqualification!"
I have reported this to both the relevant authorities and flagged for moderator intervention. One of them is unanswered, another has two wrong hints that can easily be corrected while the last is shown to be unsolved. I would like to request fellow users to not answer the questions till after 5th of November, 2018; the last day of submission. Thank you!
I have just received a response from the organizers of the event:
"Thank you for your message and the information. This is unacceptable behavior, thank you for reporting this incident - you accomplished a great feat for enabling a fair competition. Please continue helping the IYMC community by reporting these incidents if they continue to emerge. IYMC tries its best to tackle people and behavior that try to sabotage the competition - the help of our community is essential for that."
The very fact that they managed to reply to the complaint in 2 hours is a commendable feat and their dedication to keep the competition as fair as possible is amazing.
As a fellow user in the comments pointed out, another question is also from the same competition:
I have repeated my previous actions and would like to sincerely thank user @md2perpe for pointing it out as I had not noticed that particular question before.