I'm not good at PS. I want to start over again . How should I solve problems in codeforces? Is difficulty wise sorted is more helpful or Most Solved sorted ?

I want to become specialist within 3 months. Any kind of advice would be very much appreciated . Thank you

I love gaming . Sometimes I play 12-15 hours a day . I know that it's a big burden for problem solving. So recently i deleted all of my games and started focusing on problem solving. Now I am feeling more depressed :( I want to become a good coder . So is it possible to become a good problem solver and play games at the same time?

Actually im learning prefix sum and trying to solve problems with it. Im trying this problem for a quite long time. I dont no why my code is not showing the right output. Can someone help? Thanks in advance. 87009522