I've used sites like these when I am stuck with a problem and I would like a hint. But learning the theory is important. The resources I've used recently to tra

I've used sites like these when I am stuck with a problem and I would like a hint. But learning the theory is important. The resources I've used recently to train myself are: - Competitive programmer's handbook: https://cses.fi/book.html https://cses.fi/book.html - InterviewBit: https://www.interviewbit.com/ https://www.interviewbit.com/ - Sedgewick's DS&A course/book https://www.coursera.org/learn/algorithms-part1 https://www.coursera.org/learn/algorithms-part1 http://algs4.cs.princeton.edu/home/ http://algs4.cs.princeton.edu/home/ A similar site, with C++ using [some] STL can be found here: http://www.techiedelight.com/data-structures-and-algorithms-interview-questions-stl/ http://www.techiedelight.com/data-structures-and-algorithms-...