Stacks
Stack A Stack is a special linear data structure that only allows insertion and deletion operations at one end of the structure. This end is called the Top, and the other end is called the Bottom. Stack operations follow the Last-In, First-Out (LIFO) principle. Push Add a new element at the top of the stack. Pop Remove and return the element at the top of the stack. Top (Peek) Return the element at the top of the stack without removing it.
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