check50, submit50, and are undergoing maintenance
Scheduled Maintenance Report for CS50
The scheduled maintenance has been completed.
Posted Apr 20, 2021 - 04:10 EDT
In progress
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted Apr 19, 2021 - 23:00 EDT
We will be undergoing scheduled maintenance during this time.
Posted Apr 19, 2021 - 21:18 EDT
This scheduled maintenance affected: check50,, and submit50.