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Where all "the following" i can help you but you said which of the folllowing and ther no picture or anything?

The stack data structure can erase from its beginning or its end in O(1) time.

The O(1) complexity is an illustration of getting operations done in a constant time.

Stack data structure uses the push and pop operations for inserting and deleting items in a linear or constant time.

This implies that, inserting an item into a stack happens in O(1) time, and also; removing an item from the stack, irrespective of the item location (beginning, end, or in between) happens in O(1) time.

Read more about data structure at:

https://brainly.com/question/21287881

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