622C - Not Equal on a Segment 15943480 It gives TLE on test case number 14!
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Codeforces (c) Copyright 2010-2024 Михаил Мирзаянов
Соревнования по программированию 2.0
Время на сервере: 22.11.2024 23:47:46 (k1).
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A long code without any explanation. Don't be surprised that you don't get help.
EDIT — The next paragraph is bullshit, don't read it.
I have read your code and I think its complexity is O(n·m) because of line:
p=lower_bound(h[x].begin(),h[x].end(),l);Note that
lower_bound()is linear for vectors. Write your own binary search there.http://www.cplusplus.com/reference/algorithm/lower_bound/
Lower bound is O(LogN) for random access containers is what is mentioned here..Is lower_bound really linear for vectors?
No.
Damn. I messed it up with
lower_boundinset. Sorry everyone!Of course it is logarithmic for vectors as they are random-access containers. Did you mean anything else?
lower_bound(x.begin(),x.end(),a)->x.lower_bound(a)That syntax is only true in case the container has lower_bound as a member function. So it's valid for something like sets, but not valid for vectors.
No its not linear. The same got AC with fast I/O and using iterative binary search.
Replace endl with "\n".
And pass vectors by reference in functions
flr()andsr().