Problems from North America Championship 2020

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
All Kill0.001811297054%4.7Mediumen
Another Coin Weighing Puzzle0.0026255919435%6.5Harden
Bomas0.18156044713831%7.5Harden
Editing Explosion0.0625519613971%6.0Harden
Grid Guardian0.6316301114137%7.8Harden
Hopscotch 500.002352833109839%2.6Easyen
ICPC Camp0.16577111334431%5.2Mediumen
Letter Wheels0.00588105138036%5.5Harden
Lunchtime Name Recall0.58111866615623%8.7Harden
Mini Battleship0.01775145555038%4.5Mediumen
Rooted Subtrees0.12924122737831%4.0Mediumen
Tomb Raider0.03162239710927%5.6Harden