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

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Bracket Pairing0.0036464219530%6.1Harden
Code Guessing0.00140277363923%3.1Mediumen
Concert Rehearsal0.027526779414%7.6Harden
Espresso!0.0065219880537%2.2Easyen
Even Substrings0.56167433210030%6.7Harden
Land Equality0.0035596619720%5.4Mediumen
Lone Rook0.0313085229418%7.6Harden
Parking Lot0.0510852426828%5.9Harden
Stream Lag0.0066100946146%3.1Mediumen
Subprime0.019276127035%3.9Mediumen
Tree Number Generator0.5315634079624%7.0Harden
Ultimate Binary Watch0.00792853112740%1.9Easyen
Word Puzzle0.2345544313530%5.1Mediumen