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34 lines
1.8 KiB
HTML
34 lines
1.8 KiB
HTML
<p>You are given two linked lists: <code>list1</code> and <code>list2</code> of sizes <code>n</code> and <code>m</code> respectively.</p>
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<p>Remove <code>list1</code>'s nodes from the <code>a<sup>th</sup></code> node to the <code>b<sup>th</sup></code> node, and put <code>list2</code> in their place.</p>
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<p>The blue edges and nodes in the following figure indicate the result:</p>
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<img alt="" src="https://assets.leetcode.com/uploads/2020/11/05/fig1.png" style="height: 130px; width: 504px;" />
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<p><em>Build the result list and return its head.</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/2024/03/01/ll.png" style="width: 609px; height: 210px;" />
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<pre>
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<strong>Input:</strong> list1 = [10,1,13,6,9,5], a = 3, b = 4, list2 = [1000000,1000001,1000002]
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<strong>Output:</strong> [10,1,13,1000000,1000001,1000002,5]
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<strong>Explanation:</strong> We remove the nodes 3 and 4 and put the entire list2 in their place. The blue edges and nodes in the above figure indicate the result.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<img alt="" src="https://assets.leetcode.com/uploads/2020/11/05/merge_linked_list_ex2.png" style="width: 463px; height: 140px;" />
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<pre>
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<strong>Input:</strong> list1 = [0,1,2,3,4,5,6], a = 2, b = 5, list2 = [1000000,1000001,1000002,1000003,1000004]
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<strong>Output:</strong> [0,1,1000000,1000001,1000002,1000003,1000004,6]
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<strong>Explanation:</strong> The blue edges and nodes in the above figure indicate the result.
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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><code>3 <= list1.length <= 10<sup>4</sup></code></li>
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<li><code>1 <= a <= b < list1.length - 1</code></li>
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<li><code>1 <= list2.length <= 10<sup>4</sup></code></li>
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</ul>
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