hello i am practising question on code forces in the problem set for almost 2 weeks now mostly problem with difficulty 1100 i just want to ask that is solving random problems in problem set of code forces is best plam or is something in order or sequential worth it more or should I try something else which will give me the best output in the corresponding time?? you can also share your strategy or tips of solving questions that helped you to increase your rating faster than others in almost the same time.