What is the primary difference between a stack and a queue?

What is the primary difference between a stack and a queue?

Step 1: Understand what a stack is. A stack is a collection of items where the last item added is the first one to be removed.
Step 2: Remember the term LIFO, which stands for Last In First Out. This means the most recently added item is the first to come out.
Step 3: Now, understand what a queue is. A queue is a collection of items where the first item added is the first one to be removed.
Step 4: Remember the term FIFO, which stands for First In First Out. This means the first item added is the first to come out.
Step 5: Compare the two: In a stack, the last item added is removed first (LIFO), while in a queue, the first item added is removed first (FIFO).

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