Problems from 2021 ICPC North America Regionals (February 26 2022)

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Bracket Pairing0.0032923117676%5.8Harden
Code Guessing0.0014093476282%2.7Easyen
Concert Rehearsal0.0161125111345%7.6Harden
Espresso!0.00651130101290%1.9Easyen
Even Substrings0.569771136961%7.0Harden
Land Equality0.0035529621874%5.2Mediumen
Lone Rook0.0313081207764%7.4Harden
Parking Lot0.051085876170%8.2Harden
Stream Lag0.006665156086%3.3Mediumen
Subprime0.019235329483%3.5Mediumen
Tree Number Generator0.521563926166%5.8Harden
Ultimate Binary Watch0.00791349123391%2.0Easyen
Word Puzzle0.2345517713777%4.9Mediumen