2022-12-04 20:08:50 +08:00
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<p>You are given the <code>head</code> of a linked list.</p>
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2023-12-09 18:42:21 +08:00
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<p>Remove every node which has a node with a greater value anywhere to the right side of it.</p>
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2022-12-04 20:08:50 +08:00
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<p>Return <em>the </em><code>head</code><em> of the modified linked list.</em></p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<img alt="" src="https://assets.leetcode.com/uploads/2022/10/02/drawio.png" style="width: 631px; height: 51px;" />
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<pre>
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<strong>Input:</strong> head = [5,2,13,3,8]
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<strong>Output:</strong> [13,8]
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<strong>Explanation:</strong> The nodes that should be removed are 5, 2 and 3.
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- Node 13 is to the right of node 5.
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- Node 13 is to the right of node 2.
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- Node 8 is to the right of node 3.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> head = [1,1,1,1]
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<strong>Output:</strong> [1,1,1,1]
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<strong>Explanation:</strong> Every node has value 1, so no nodes are removed.
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li>The number of the nodes in the given list is in the range <code>[1, 10<sup>5</sup>]</code>.</li>
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<li><code>1 <= Node.val <= 10<sup>5</sup></code></li>
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</ul>
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