I'm happy to announce upcoming Codechef December Lunchtime as the setter of all the problems in the contest. This is my first contest on Codechef and for sure not the last one
The contest starts on Saturday December 31 and have 4 problems to solve, 2 easier and 2 harder ones. Some graph theory might be useful while trying to solve them If you want to finish the year strong, this is a nice possibility.
After the contest my editorials will be posted on discuss.codechef.com as always.
Happy coding and good luck!