What is the definition of a list in C++?

In C++, a list is a data structure that represents a doubly linked list. It can store elements of different types and allows for dynamic insertion, deletion, and access operations.

To use a list, you must first include the header file. Then you can use the list template class to define a specific list object. For example:

#include <list>

int main() {
    std::list<int> myList;  // 定义一个存储int类型的list对象
    // ...
}

The above code creates a list object named myList to store integer elements. Member functions of the list such as push_back(), pop_front(), and insert() can be used to manipulate it.

It is important to note that a list is a dynamically allocated data structure where each element has a pointer to the previous and next element, making insertion and deletion operations efficient. However, due to being a linked list, its efficiency for random access to elements is lower. If frequent random access operations are needed, consider using containers like vector or array.