Problems from North America Championship 2020

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
All Kill0.00109956872%6.1Harden
Another Coin Weighing Puzzle0.0015022517276%6.5Harden
Bomas0.1815601138878%7.7Harden
Editing Explosion0.06255957983%6.0Harden
Grid Guardian0.631630412356%8.8Harden
Hopscotch 500.0023592784992%2.6Easyen
ICPC Camp0.1657733428184%5.7Harden
Letter Wheels0.0058835228380%5.8Harden
Lunchtime Name Recall0.2711181037068%8.6Harden
Mini Battleship0.0177568454780%6.0Harden
Rooted Subtrees0.1285036232790%3.9Mediumen
Tomb Raider0.03160812210485%6.6Harden