Do you guys know of any online course that teaches data structures, algorithms and other competitive stuff, but which is like, semi-online :
- the course would run for ,say 3 months
- the instructor would add videos/livestream on a specific day/days and give the assignment questions/tests
- assignment questions/tests are expected to be completed before the next video, where these questions , along with new concepts are discussed?

I hate those udacity/udemy courses where you have a large playlist of videos open up as you pay. It makes me loose half of my motivation since i know i can watch them later and end up watching them never. Plus there is no competition to motivate

I want this as my job does not allows me to stay sharp in competitive programming and it would be nice to remain in touch with that( without being too much stressed about it).