How can I cut a video without re-encoding using Avidemux?

To cut a video without re-encoding using Avidemux, you can follow these steps:

1. Open the video file in Avidemux.
2. Use the "A" and "B" buttons to mark the start and end points of the segment you want to keep.
3. Go to "Edit" and select "Set Selection Start" and "Set Selection End."
4. Finally, go to "File" and choose "Save" to save the trimmed video without re-encoding.