What to do if the time to complete a task is running out and the solution is not found yet?

If the time to complete the task is running out and the solution has not yet been found, it is worth:

• Focusing on what has already been implemented: bringing the code to a working state, adding comments.
• Explaining what has been done, what problems have arisen, and how you plan to solve them.
• If possible, writing a simplified or partial version of the solution.
• Demonstrating understanding of the task and approach, even if the full code is not ready.

This approach shows the ability to work under time constraints and good communication skills.