CPP-STL

Some notes on C++ STL.

std::vector

https://en.cppreference.com/w/cpp/container/vector

template<
    class T,
    class Allocator = std::allocator<T>
> class vector;

(construtor) :

push_back(): Add an element to the end.

std::unordered_map

https://en.cppreference.com/w/cpp/container/unordered_map

template<
    class Key,
    class T,
    class Hash = std::hash<Key>,
    class KeyEqual = std::equal_to<Key>,
    class Allocator = std::allocator<std::pair<const Key, T>>
> class unordered_map;

find(): Returns an iterator to the element if found, otherwise it returns end().