In C++, what is the difference between emplace_back and push_back, when using vectors? I looked at other sources, and still find it confusing as to what s the difference between the two of these.

How can I quickly copy an array of shared pointers into a new array in C++? Create a list of potential responses to the problem at hand. If I duplicate a shared pointer, will I also copy the object it points to? Explain

Which header file is necessary for C++ OOP?  What attribute permits open recursion?

Every data structure that we use in computer science has its weaknesses and strengthsHaving a full understanding of each will help make us better programmers!For this experiment, let's work with STL vectors and STL dequesFull requirements descriptions are found in the source code file Part 1Work with inserting elements at the front of a vector and a deque (30%) Part 2Work with inserting elements at the back of a vector and a deque (30%) Part 3Work with inserting elements in the middle, and removing elements from, a vector and a deque (40%) Please make sure to put your code specifically where it is asked for, and no where elseDo not modify any of the code you already see in the template file This C++ source code file is required to complete this problem