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41 lines
1.1 KiB
HTML
41 lines
1.1 KiB
HTML
<p>给你链表的头结点 <code>head</code> ，请将其按 <strong>升序</strong> 排列并返回 <strong>排序后的链表</strong> 。</p>
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<ul>
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</ul>
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<img alt="" src="https://assets.leetcode.com/uploads/2020/09/14/sort_list_1.jpg" style="width: 450px;" />
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<pre>
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<b>输入：</b>head = [4,2,1,3]
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<b>输出：</b>[1,2,3,4]
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</pre>
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<p><strong>示例 2：</strong></p>
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<img alt="" src="https://assets.leetcode.com/uploads/2020/09/14/sort_list_2.jpg" style="width: 550px;" />
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<pre>
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<b>输入：</b>head = [-1,5,3,4,0]
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<b>输出：</b>[-1,0,3,4,5]
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</pre>
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<p><strong>示例 3：</strong></p>
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<pre>
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<b>输入：</b>head = []
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<b>输出：</b>[]
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</pre>
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<p> </p>
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<p><b>提示：</b></p>
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<ul>
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<li>链表中节点的数目在范围 <code>[0, 5 * 10<sup>4</sup>]</code> 内</li>
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<li><code>-10<sup>5</sup> <= Node.val <= 10<sup>5</sup></code></li>
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</ul>
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<p> </p>
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<p><b>进阶：</b>你可以在 <code>O(n log n)</code> 时间复杂度和常数级空间复杂度下，对链表进行排序吗？</p>
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