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

Name
Fastest
Shortest
Authors
Full Solves
Ratio
Difficulty
Languages
Bracket Pairing0.0032922617176%5.8Harden
Code Guessing0.0014091174081%2.8Mediumen
Concert Rehearsal0.0161124710944%7.7Harden
Espresso!0.0065110898989%2.0Easyen
Even Substrings0.569771126861%7.0Harden
Land Equality0.0035528521274%5.1Mediumen
Lone Rook0.0313081197664%7.5Harden
Parking Lot0.051085836072%7.8Harden
Stream Lag0.006663854786%3.5Mediumen
Subprime0.019235129283%3.5Mediumen
Tree Number Generator0.521563916066%5.9Harden
Ultimate Binary Watch0.00791336122091%2.0Easyen
Word Puzzle0.2345517213377%5.0Mediumen