Hello, Codeforces community.

It is my pleasure to invite you all to the replay contest of National High School Programming Contest 2020 (National Round), which took place some weeks back with the young contestants of Bangladesh as participants. The contest is loosely based on IOI rules and syllabus, with problems having subtask-based scoring system.

The contest will begin at 13:00 UTC on 15 July, 2020 and will run for 5 hours. There will be 12 problems in total.

The contest platform is toph.co, you can register for the contest here.

The problems of the contest were authored and reviewed by curly_braces, fsshakkhor, gola, rebornplusplus, Hasinur_, Hasnaine_, Moshiur_, I_love_ProParThinkNot, ishtupeed, ovis96, SiamH, Shefin_, solaimanope, tanus_era, upobir.

You can use C++11 GCC 7.4, C++14 GCC 8.3, C++17 GCC 9.2, C11 GCC 9.2, PyPy 7.1 (2.7), PyPy 7.1 (3.6), Python 2.7 and Python 3.7 in this contest.

We look forward to your participation and hope that you enjoy the problemset, best of luck in the contest.