What is better than setting one AtCoder Grand Contest? Setting two AtCoder Grand Contests, of course!
This is the first contest of 2018 counted towards AtCoder Race Ranking. If you get into top 30 in this contest, you will get GP30 scores.
The point values will be 300 — 500 — 700 — 1100 (500) — 1400 — 2100. Note that the contest duration is unusual (130 minutes).
Let's discuss problems after the contest.