Difference between std::lower_bound and set::lower_bound
Difference between en1 and en2, changed 1 character(s)
So today I learnt a new thing, which I think will be useful for beginners. I thought that both of the lines are equivalent.↵
However when I found out that the lat
ter is more efficient in case of sets. ↵

set<int> set1;↵

auto ite = upper_bound(set1.begin(), set1.end(), val); // O(n) // O(log n) in case of random access container.↵
auto ite = set1.upper_bound(val);//O(log n) // binary search, uses set property↵

Hope this helps; return 0;↵


History

 
 
 
 
Revisions
 
 
  Rev. Lang. By When Δ Comment
en2 English ghost1733 2021-06-01 11:59:58 1 Tiny change: 'at the later is mor' -> 'at the latter is mor'
en1 English ghost1733 2021-06-01 11:59:12 505 Initial revision (published)