ZOJ Monthly, January 2019 will be held on Saturday (time). The problem setter is chenjb and Claris.
It will last for 5 hours and have 8-9 problem in total. Since there is no rating system(Thanks to MudCoal, we may have one in the future) in our Zhejiang University Online Judge, it will be unrated.
All problem ideas come from members of Zhejiang University Competitive Programming Team and they have already been used in the Internal Member-Selection Contests in ZJU.