Three new OPL problems and one bug fix#1216

Open

ChenfeiP wants to merge 4 commits intoopenwebwork:mainfrom

Commits on Dec 13, 2024

Fixed bug #4857
ChenfeiP
committed
Fixed bug #4856
ChenfeiP
committed
Merge remote-tracking branch 'origin/main' into main
Chenfei Peng
committed
Please consider those problems for addition to the OPL
ChenfeiP
committed