stl library c++ 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: strcmp c++
int strcmp ( const char * str1, const char * str2 );
// returning value | indicates
// <0 the first character that does not match has a lower value in ptr1 than in ptr2
// 0 the contents of both strings are equal
// >0 the first character that does not match has a greater value in ptr1 than in ptr2