If you don't mind dropping a few bucks on Coursera, Tim Roughgarden's algorithms sequence adopted from his Stanford lectures and MOOC are exceptional: https://

If you don't mind dropping a few bucks on Coursera, Tim Roughgarden's algorithms sequence adopted from his Stanford lectures and MOOC are exceptional: https://www.coursera.org/specializations/algorithms https://www.coursera.org/specializations/algorithms Can't recommend enough. The material and instruction are top-notch.