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28 lines
980 B
HTML
28 lines
980 B
HTML
<p>给定一个已排序的链表的头<meta charset="UTF-8" /> <code>head</code> ， <em>删除所有重复的元素，使每个元素只出现一次</em> 。返回 <em>已排序的链表</em> 。</p>
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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/2021/01/04/list1.jpg" style="height: 160px; width: 200px;" />
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<pre>
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<strong>输入：</strong>head = [1,1,2]
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<strong>输出：</strong>[1,2]
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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/2021/01/04/list2.jpg" style="height: 123px; width: 300px;" />
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<pre>
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<strong>输入：</strong>head = [1,1,2,3,3]
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<strong>输出：</strong>[1,2,3]
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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>链表中节点数目在范围 <code>[0, 300]</code> 内</li>
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<li><code>-100 <= Node.val <= 100</code></li>
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<li>题目数据保证链表已经按升序 <strong>排列</strong></li>
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</ul>
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