I'm kind of new here, but I heard from others that 40 contests is not a lot.
In general, try to figure out why you couldn't solve the problems you couldn't solve. Did you run out of time, is there a math/logic insight you didn't get, is there a certain data structure or algorithm you didn't learn, or did you mess up the implementation? Do more specialize practice on where you find challenging, and you should see improvements.
Regarding accounts where they became master or specialist in just 45 contests, they could be cheating, or they could just have previous experience. Like imagine you are already at grandmaster level, but you just discovered/started doing code force, it's certainly possible. Or they have experience at competition math etc.
I'm kind of new here, but I heard from others that 40 contests is not a lot.
In general, try to figure out why you couldn't solve the problems you couldn't solve. Did you run out of time, is there a math/logic insight you didn't get, is there a certain data structure or algorithm you didn't learn, or did you mess up the implementation? Do more specialize practice on where you find challenging, and you should see improvements.
Regarding accounts where they became master or specialist in just 45 contests, they could be cheating, or they could just have previous experience. Like imagine you are already at grandmaster level, but you just discovered/started doing code force, it's certainly possible. Or they have experience at competition math etc.