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35 lines
928 B
HTML
35 lines
928 B
HTML
<p>请实现一个函数来判断整数数组 <code>postorder</code> 是否为二叉搜索树的后序遍历结果。</p>
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<p><img alt="" src="https://pic.leetcode.cn/1694762751-fwHhWX-%E5%89%91%E6%8C%8733%E7%A4%BA%E4%BE%8B1.png" /></p>
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<pre>
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<strong>输入: </strong>postorder = [4,9,6,9,8]
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<strong>输出: </strong>false
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<strong>解释：</strong>从上图可以看出这不是一颗二叉搜索树
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</pre>
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<p><strong>示例 2：</strong></p>
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<p><img alt="" src="https://pic.leetcode.cn/1694762510-vVpTic-%E5%89%91%E6%8C%8733.png" /></p>
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<pre>
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<strong>输入: </strong>postorder = [4,6,5,9,8]
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<strong>输出: </strong>true
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<strong>解释：</strong>可构建的二叉搜索树如上图
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</pre>
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<p> </p>
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<p><strong>提示：</strong></p>
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<ul>
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<li><code>数组长度 <= 1000</code></li>
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<li><code>postorder</code> 中无重复数字</li>
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</ul>
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<p> </p>
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