Problems from North America Championship 2020

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
All Kill0.00109956872%6.1Harden
Another Coin Weighing Puzzle0.0015022216976%6.6Harden
Bomas0.1815601118778%7.7Harden
Editing Explosion0.06255947883%6.1Harden
Grid Guardian0.631630402357%8.6Harden
Hopscotch 500.0023592584792%2.6Easyen
ICPC Camp0.1657733027884%5.6Harden
Letter Wheels0.0058835128280%5.8Harden
Lunchtime Name Recall0.2711181027069%8.5Harden
Mini Battleship0.0177568254580%5.9Harden
Rooted Subtrees0.1285035832491%3.9Mediumen
Tomb Raider0.03160812210485%6.6Harden