A single node in a linked-list-based stack.
| 127 | |
| 128 | |
| 129 | class StackNode: |
| 130 | """A single node in a linked-list-based stack.""" |
| 131 | |
| 132 | def __init__(self, value: object) -> None: |
| 133 | self.value = value |
| 134 | self.next: StackNode | None = None |
| 135 | |
| 136 | |
| 137 | class LinkedListStack(AbstractStack): |