By sharpc and udpn. Code samples by Evil_Stivie.
This is theoretical STL minimum for competitive programmers, a subset of features of C++ standard library useful for solving algorithmic problems. Topics are grouped mostly by STL header file name and context of use. Almost all names you might encounter in this guide are in std
namespace. For it, and only for it, you should add below all #include
s:
using namespace std;