Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem solver: YeongTree
1788F - XOR, Tree, and Queries
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem idea: azberjibiou
Problem solver: YeongTree
1788F - XOR, Tree, and Queries
Problem idea: azberjibiou
Hello Codeforces and welcome back to another div2 round.
YeongTree and I are excited to invite everyone to participate in Codeforces Round 851 (Div. 2), which will be held on Feb/09/2023 17:35 (Moscow time).
This round is rated for the participants with ratings strictly lower than 2100. You will be given 6 problems and 2 hours to solve them. All the problems are authored and prepared by YeongTree and me.
We would like to thank
The score distributions will be updated later.
UPD1: Score distribution: $$$500−1000-1500-2250−2500-3000$$$
UPD2: Congratulations to the winners!
Overall:
Rated participants
AC submissions at the last second
UPD3: Editorial is out