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

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Bracket Pairing0.0032980124330%6.1Harden
Code Guessing0.00140328978524%2.9Mediumen
Concert Rehearsal0.0175279512015%7.8Harden
Espresso!0.00652723100137%2.1Easyen
Even Substrings0.56167439810727%7.1Harden
Land Equality0.00355110922720%5.2Mediumen
Lone Rook0.03130870012017%7.9Harden
Parking Lot0.0510853477923%8.1Harden
Stream Lag0.0066159162139%4.0Mediumen
Subprime0.019298534035%3.7Mediumen
Tree Number Generator0.53156350710521%6.3Harden
Ultimate Binary Watch0.00793364131339%2.1Easyen
Word Puzzle0.2345554417031%4.9Mediumen