please help me get the correct code in C++ quickly

Your task is to implement a simple container of integer numbers. You are given some template code in the class within the and files. You should implement any empty methods of this class, which correspond to the operations described below. Unit tests are already implemented in the and files, so feel free to open them and get familiar with the details. Note that these unit tests use the framework. To run these tests, you can use the following options associated with the button located on the bottom right corner