From what I have seen,coders in programming challenges like these hardly go with STL or the higher level libraries,
Yes ,the reason is speed.But aren’t we supposed to use it when the need arises??
Say if you think a problem can be solved with STL sets only. Do I avoid using STL and stick with stdio ,arrays and the likes or implement it??
It’s a trivial question but I just need to know when to use what.