I joined codechef at june 8 and i’m able to solve under 1000 problems, but i want to improve my ratings, can anyone please suggest me how do i do this?
i wanna know in what time how many questions to solve to reach from 1 star to 3 star in a contest and what are the most important topics i have to learn?
thank you sir , but there are a lot of problems which are locked, so would i practise them ?