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https://gitee.com/coder-xiaomo/leetcode-problemset
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26 lines
1021 B
HTML
26 lines
1021 B
HTML
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<p>栈排序。 编写程序,对栈进行排序使最小元素位于栈顶。最多只能使用一个其他的临时栈存放数据,但不得将元素复制到别的数据结构(如数组)中。该栈支持如下操作:<code>push</code>、<code>pop</code>、<code>peek</code> 和 <code>isEmpty</code>。当栈为空时,<code>peek</code> 返回 -1。</p>
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<p><strong>示例1:</strong></p>
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<pre><strong> 输入</strong>:
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["SortedStack", "push", "push", "peek", "pop", "peek"]
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[[], [1], [2], [], [], []]
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<strong> 输出</strong>:
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[null,null,null,1,null,2]
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</pre>
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<p><strong>示例2:</strong></p>
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<pre><strong> 输入</strong>:
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["SortedStack", "pop", "pop", "push", "pop", "isEmpty"]
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[[], [], [], [1], [], []]
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<strong> 输出</strong>:
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[null,null,null,null,null,true]
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</pre>
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<p><strong>说明:</strong></p>
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<ol>
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<li>栈中的元素数目在[0, 5000]范围内。</li>
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</ol>
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