Viewing Hints for Coding Problems

For coding problems where you write code and submit it, you can check AI-generated hints based on your in-progress code on the Hints tab of the problem screen. There are two types of hints:

Hint	Content	Available After
Error location	The lines that need correction and the approximate ratio of correct lines	About 3 minutes after opening the problem (default setting)
Additional hints	The reason for the error, how to fix it, corrected code, etc., displayed one step at a time	About 5 minutes after opening the problem (default setting)

The time until hints become available and which hints you can use depend on the material's settings.

Viewing Error Locations

1. Write code on the problem screen.
2. After the available time has passed, about 10 seconds after you edit your code, the AI estimates error locations and displays them on the Hints tab.
3. Each displayed item is labeled Verified or Unverified. Unverified hints are still being checked for accuracy and may be incorrect.

Press Regenerate to estimate again based on your current code. If a new estimate is generated while additional hints are displayed, the message "A new error location estimate has been generated." appears. Press Show to switch to it.

Viewing Additional Hints

1. Press Request Hint on the Hints tab (Request Additional Hint while error locations are displayed).
2. Generation takes from several dozen seconds to a few minutes. Once generated, the first step is displayed.
3. If you want more detail, press Request Additional Hint to display the next step. After all steps are shown, the message "No more hints." appears.
4. To start over, press Reset.

If the available time has passed, additional hints are also generated automatically when you submit an incorrect answer.

If you check Show hints before verification and press Regenerate for error locations, unverified error locations are displayed first with an Unverified label. They appear sooner, but incorrect hints may be shown. If verification finds an error, the message "Verification found an error in the hint, so it was withdrawn." appears and the previous hint is restored.

When Hints Are Not Displayed

The Hints tab is not shown in the following cases:

• For materials in exam mode, during the exam period
• For problems graded manually
• When hints are disabled in the material settings

If an error appears on the Hints tab, follow the instructions shown. The main messages are:

Message	Action
The AI could not generate a hint.	Fix syntax errors, keep writing code, or review the problem statement, then try again.
Because the file (…) specified by the problem was not submitted, …	Check that the file name matches the one specified in the problem.
Hints cannot be generated because the AI usage limit has been reached.	Wait for a while and try again.
Because you are using a programming language not supported by the AI, …	Switch to another programming language allowed in the problem.

Notes

• Hints are generated by AI and may contain errors.
• Instructors can check the number of hints each learner used on the learning analytics screen, and the last hint viewed in submission details.
• To ask questions about the material's content, use the AI chat.