algorithms

Sedgewick

https://www.youtube.com/watch?v=9diDWV-fOnE&list=PL7T06JEc5PF6SRqw4z0wWizeD_W2IF1hC&index=3&ab_channel=Nerd’slesson

MIT 6.006 - 6.046

https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-006-introduction-to-algorithms-fall-2011/index.htm

https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-046j-design-and-analysis-of-algorithms-spring-2015/index.htm

https://learning-modules.mit.edu/materials/index.html?uuid=/course/6/sp20/6.006#materials

Advanced data structures

http://courses.csail.mit.edu/6.851/

https://visualgo.net/en

usaco.guide