Queue data structure

Need following functions in queue:

File location - Queue

1. empty() – Returns whether the queue is empty.
2. size() – Returns the size of the queue.
3. front() – Function returns a the first element of the queue.
4. back() – Function returns a the last element of the queue.
5. push(g) – Function adds the element ‘g’ at the end of the queue.
6. pop() – Function deletes the first element of the queue.

Example:

Queue q = [1,2,3,4,5,6]; q.empty() false q.size() 6 q.front() 1 q.back() 6 q.push(10) [1, 2, 3, 4, 5, 6, 10] q.pop() [2, 3, 4, 5, 6, 10]

[makmandy]

Does this still need to be worked on, since @ashokdey 's PR has been merged

[ashokdey]

@makmandy you can look into other issues. We got a bunch of issues around. Also, you can look into other repos of this organization.