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Question about time complexity of two problems from today's contest

Revision en1, by mihajlovskijr, 2024-04-08 21:38:41

I spent really a lot of time during the today's contest trying to make my E solution faster, even though it should have O($$${n^2}logn$$$) complexity, which is with n <= 5000 should pass the 3 second limit. The only thing that helped me was changing long long to int, but even so, it's still very slow. Does anyone have any idea why my E solution is so slow (below is the final one)? And a similar question is about D as well, because I can't see any clear reasons why it is so slow:

E: 255741981
D: 255675779

Sorry about how code in E looks like, I don't know why it shifted, because for me it was totally normal when I was sending it.

Tags contest, time limit, time complexity

History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
ru1 Russian mihajlovskijr 2024-04-08 21:43:32 934 Первая редакция перевода на Русский
en1 English mihajlovskijr 2024-04-08 21:38:41 888 Initial revision (published)