今夜0:30からHackerEarthでJuly Circuits '18

9日間コンテストで出題は
7 traditional algorithmic tasks of various difficulties and 1 approximate problem.
Day-0: Very-Easy, Easy-medium, Approximate.
Day-2: Medium, Medium-hard.
Day-4: Medium-hard, Hard.
Day-6: Hard.

Invitation to HackerEarth July Circuits '18
https://codeforces.com/blog/entry/60726
https://www.hackerearth.com/challenge/competitive/july-circuits-18/