Problems from North America Championship 2020

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
All Kill0.00109946771%6.1Harden
Another Coin Weighing Puzzle0.0015021716476%6.6Harden
Bomas0.1815601118778%7.6Harden
Editing Explosion0.06255927683%6.0Harden
Grid Guardian0.631630392256%8.6Harden
Hopscotch 500.0023592384592%2.6Easyen
ICPC Camp0.1657731026485%5.0Mediumen
Letter Wheels0.0058835128280%5.9Harden
Lunchtime Name Recall0.2711181027069%8.5Harden
Mini Battleship0.0177564550979%6.9Harden
Rooted Subtrees0.1285034431090%3.9Mediumen
Tomb Raider0.03160811710085%5.4Mediumen