Both a queue and a stack is a list of elements the difference between them is how you add and remove parts of the list. If you imagine a stack of paper, a stack would be like if you added a paper to the top of the pile and then when you want a paper you take the paper that sits on top. A queue would be like if you had a pile of papers and added paper to the top and to get a paper took the one thats at the bottom.
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