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// File: stack.go
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// Created Time: 2022-11-26
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// Author: Reanon (793584285@qq.com)
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package chapter_stack_and_queue
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type Stack interface {
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// Push 元素入栈
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Push(num int)
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// Peek 访问栈顶元素
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Peek() int
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// Pop 元素出栈
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Pop() int
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// Size 栈的长度
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Size() int
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// IsEmpty 栈是否为空
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IsEmpty() bool
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}
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