Queue Is Implemented

[ghost]

Description

Please include a summary of the change and which issue is fixed. List any dependencies that are required for this change. Fixed #15 => I have Implemented Enqueue, Dequeue, front and Display function of queue.

Type of change

Please check options that are relevant to your PR.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New Data Structure
• [ ] New Algorithm

Checklist:

• [x] I have squashed my commits
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My code is a working bug-free code

[ghost]

Declared Size variable , as in queue we use enqueue and dequeue so i have changed the name to enqueue, dequeue, front, rear. I have handled the overflow and underflow conditions. Also, I have performed the dequeue functionn in O(1) which was implemented in O(n) before and I have added the comments for every single difficult line to make it easily understandable

[ay2306]

Please resolve the merge conflict, I will merge it.

[ghost]

There are no conflicts now.