### I_lOVE_ROMAN's blog

By I_lOVE_ROMAN, history, 7 weeks ago,

Is doing div2 A<B<C regularly fast is enough for reaching expert?Do I ever need to solve D?

• +8

 » 7 weeks ago, # |   0 ABC fast, or ABCD slow
•  » » 7 weeks ago, # ^ |   +1 and solving ABC slow is enough for specialist?
•  » » » 7 weeks ago, # ^ |   +1 A and B on 30 min C on 1-1.5 hour)
 » 7 weeks ago, # |   0 Even though Im not expert I would say thay you certainly need to at least try to solve D. Most of experts that I know are usually solving them, and even if reaching expert is possible without such skill its still important just for depth of your knowledge itself.
 » 7 weeks ago, # | ← Rev. 3 →   +3 Just focus on solving problems, if you have been stuck (AKA no more ideas) for about 20 minutes, move on to another problem.You don't have to solve D to reach expert, many experts just speedforce ABC. Based on what I saw, experts usually solve C in about 20 minutes, so it shouldn't take that long either.Try upsolving Div.2 contests and aim to solve ABC as quick as possible, if you still have time left, try solving D. (Virtual contests are also an option).
 » 7 weeks ago, # |   +6 ABC fast is enough for expert.
•  » » 7 weeks ago, # ^ |   0 how fast? 30 minutes?
•  » » » 7 weeks ago, # ^ |   0 i would say C by one hour is enough, maybe a little more than an hour too
•  » » 7 weeks ago, # ^ |   0 you mean div.2?
•  » » » 7 weeks ago, # ^ |   0 yes
•  » » » » 7 weeks ago, # ^ |   0 thanks alot for answering
 » 7 weeks ago, # |   +6 I love Feli.
•  » » 7 weeks ago, # ^ |   +3 Think twice!The news system in NFLS is very developed.
 » 7 weeks ago, # |   +5 You need to if D is easy.However, ABC in every contest is a promise to expert.
 » 7 weeks ago, # |   +3 ABC fast or ABCDHowever, there's another way, if you like div3! all ProblemSet — 1 will be enough
 » 7 weeks ago, # |   0 what topics do i need for C?
•  » » 7 weeks ago, # ^ |   0 Usually it's just greedy.
 » 7 weeks ago, # |   0 Solve all the problems to be sure