Problems from North America Championship 2020

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
All Kill0.00109956872%6.1Harden
Another Coin Weighing Puzzle0.0015022016876%6.6Harden
Bomas0.1815601118778%7.7Harden
Editing Explosion0.06255927683%6.2Harden
Grid Guardian0.631630402357%8.5Harden
Hopscotch 500.0023592384592%2.6Easyen
ICPC Camp0.1657732827784%5.5Harden
Letter Wheels0.0058835128280%5.8Harden
Lunchtime Name Recall0.2711181027069%8.5Harden
Mini Battleship0.0177567053480%6.5Harden
Rooted Subtrees0.1285034631290%3.9Mediumen
Tomb Raider0.03160811810186%5.7Harden