Stack relevant python syntax

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Last updated 6:01 PM on 6/17/26
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6 Terms

1
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stack = []

Creates an empty stack

2
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stack.append(x)

Pushes x onto the stack

3
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stack.pop()

Removes and returns the top item

4
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stack[-1]

Peeks at the top item

5
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while stack:

Loops while stack is nonempty

6
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while stack and stack[-1] > x:

Pops while top is greater than x