For actually solving issues live, Python makes the most sense. But be prepared to read a lot of solutions to problems written with for loops, do-while loops,

For actually solving issues live, Python makes the most sense. But be prepared to read a lot of solutions to problems written with for loops, do-while loops, and other constructs that are not pythonic and don't translate as well to pythonic code. In a way it's good, because it forces you to re-implement the algorithms in a way that makes sense to you, thereby increasing your chances of actually learning and retaining the information.