If you want a nice tour of classical CS concepts in bite-size chunks, give the "Advent of Code" a try (adventofcode.com)
It's a collection of 25 vaguely Christmas-themed problems published each December. The 2019 advent requires you to, among others, write an interpreter for pseudo-machine code, navigate around a maze, manipulate graphs... So it's a fun way to play around with algorithmic and data structure concepts.
It's a collection of 25 vaguely Christmas-themed problems published each December. The 2019 advent requires you to, among others, write an interpreter for pseudo-machine code, navigate around a maze, manipulate graphs... So it's a fun way to play around with algorithmic and data structure concepts.