Problems from North America Championship 2020

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Kill0.001811567045%6.2Harden
Another Coin Weighing Puzzle0.0026257219734%6.6Harden
Bomas0.18156046313930%7.8Harden
Editing Explosion0.0625520513968%6.3Harden
Grid Guardian0.6316301304333%8.4Harden
Hopscotch 500.002352867111139%2.6Easyen
ICPC Camp0.16577114035031%5.1Mediumen
Letter Wheels0.00588109838935%5.4Mediumen
Lunchtime Name Recall0.27111869716424%8.7Harden
Mini Battleship0.01775153956737%4.5Mediumen
Rooted Subtrees0.12850125938731%4.0Mediumen
Tomb Raider0.03162240711027%5.6Harden