Problems from 2020 ICPC East-Central NA Regional Contest

Languages
A Rank Problem0.00124115461453%2.3Easyen
All in the Family0.008953377422%6.0Harden
Kinky Word Search0.028714618619%6.6Harden
Math Trade0.0028437520855%3.3Mediumen
Oreperations Research0.6312532435121%7.3Harden
Over the Hill, Part 10.0015540722656%2.5Easyen
Over the Hill, Part 20.0023091314937%5.8Harden
Restroom Monitor0.0147049915331%4.8Mediumen
Scholar's Lawn0.0030472786624%6.0Harden
Simply Sudoku0.0093723211349%3.8Mediumen
Weighty Tomes0.006681809050%4.6Mediumen
Workers of the World Unite! Just Not Too Close.0.0120711376346%4.6Mediumen