stl cpp code example

Example 1: STL c++

Good Website to learn:
https://en.cppreference.com/w/cpp/container
https://www.cplusplus.com/reference/stl/
https://www.geeksforgeeks.org/the-c-standard-template-library-stl/

Example 2: stl import c++

#include <bits/stdc++.h>