We're glad to invite you to participate in HACKARZ FOOLS CONTEST #3, which will take place on Nov/28/2024 17:35 (Moscow time). You will be given 10 problems and 3 hours to solve them. The problems ARE NOT SORTED ACCORDING TO DIFFICULTY so please read all problems.
The problems were authored and prepared by: Baraa-Ahmed, ahmedfouadnew, MN3M, enfp, .Habiba., and our beloved coordinator Ahmadsm2005.
We would like to thank yahia, Youssef_Elwazzan, d19n, and Metal_Sonic for testing.
We would like to thank our media team for their beautiful work: enfp, Elaine151, and hAneeNn.
We hope you'll like the problems and enjoy the contest!
Join the group: https://mirror.codeforces.com/group/zJtqriSgdw/contests.
IMPORTANT NOTES:
- Solving some problems may depend on reading others.
- Searching for anything is allowed during the contest, but using AI like ChatGPT is not allowed.








Auto comment: topic has been updated by MN3M (previous revision, new revision, compare).
I hope you all have an amazing time at the contest (˶˃ ᵕ ˂˶)
Auto comment: topic has been updated by MN3M (previous revision, new revision, compare).
Finally my favorite contest.
As a problem setter, I guarantee that the problems will be AMAZING.
GOOD LUCK!!
Auto comment: topic has been updated by MN3M (previous revision, new revision, compare).
Why I'm getting this while registering
You are not allowed to take part in the group contest.I have invited you to the group.
I'm not able to register, can someone please add me to the group
I have invited you to the group.
i can't join Group: You are not allowed to take part in the group contest.
You are a member already.
I am not able to join the group. Will you please resolve this??
You are a member already.
I can't register, could you please add me too?
Done