My sole advice on keep going is keep going. Here are two websites that might help you practice: https://projecteuler.net/ and http://www.spoj.com/. Start from project Euler and solve all the questions. If you are stuck, you can always find solutions on Internet but first try everything yourself.
My sole advice on keep going is keep going. Here are two websites that might help you practice: https://projecteuler.net/ and http://www.spoj.com/. Start from project Euler and solve all the questions. If you are stuck, you can always find solutions on Internet but first try everything yourself.