Problems from North America Championship 2020

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Kill0.001091707242%6.6Harden
Another Coin Weighing Puzzle0.0016159720635%6.7Harden
Bomas0.18156050714328%8.2Harden
Editing Explosion0.0625521814064%6.4Harden
Grid Guardian0.6316301474531%8.3Harden
Hopscotch 500.002352973114739%2.6Easyen
ICPC Camp0.16577118035830%5.1Mediumen
Letter Wheels0.00588113940235%5.6Harden
Lunchtime Name Recall0.27111871016623%8.4Harden
Mini Battleship0.01775229368230%7.1Harden
Rooted Subtrees0.12850132141031%4.0Mediumen
Tomb Raider0.03160843211426%5.6Harden