NOI 2021 Qualification Contest (0/300)

Contest Description
Timed Practice for NOI 2021 Qualification Contest.
Scoreboard
Problem ID Your Score Title Source Problem Type
competition
N/A
competition NOI 2021 Qualification Batch
departure
N/A
departure NOI 2021 Qualification Batch
truck
N/A
truck NOI 2021 Qualification (huajun) Batch