This would depend on how much you can spend time, and how in-depth you would be work on the coding exercises.
We provide different levels for the coding exercises (Basic, Medium, Advanced, and Nightmare). Just finishing the Basic levels would be fine, but we encourage students to challenge themselves with the more difficult levels, especially if you'd like to join our advanced program.
If you were working on the Basic exercises and spent 2 hours a day, on average it would take a month to complete the course.