leetcode-problemset/leetcode-cn/originData/liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof.json

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            "title": "两个链表的第一个公共节点  LCOF",
            "titleSlug": "liang-ge-lian-biao-de-di-yi-ge-gong-gong-jie-dian-lcof",
            "content": "English description is not available for the problem. Please switch to Chinese.",
            "translatedTitle": "两个链表的第一个公共节点",
            "translatedContent": "<p>输入两个链表，找出它们的第一个公共节点。</p>\n\n<p>如下面的两个链表<strong>：</strong></p>\n\n<p><a href=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2018/12/14/160_statement.png\" target=\"_blank\"><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2018/12/14/160_statement.png\" style=\"height: 130px; width: 400px;\"></a></p>\n\n<p>在节点 c1 开始相交。</p>\n\n<p>&nbsp;</p>\n\n<p><strong>示例 1：</strong></p>\n\n<p><a href=\"https://assets.leetcode.com/uploads/2018/12/13/160_example_1.png\" target=\"_blank\"><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2018/12/14/160_example_1.png\" style=\"height: 130px; width: 400px;\"></a></p>\n\n<pre><strong>输入：</strong>intersectVal = 8, listA = [4,1,8,4,5], listB = [5,0,1,8,4,5], skipA = 2, skipB = 3\n<strong>输出：</strong>Reference of the node with value = 8\n<strong>输入解释：</strong>相交节点的值为 8 （注意，如果两个列表相交则不能为 0）。从各自的表头开始算起，链表 A 为 [4,1,8,4,5]，链表 B 为 [5,0,1,8,4,5]。在 A 中，相交节点前有 2 个节点；在 B 中，相交节点前有 3 个节点。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>示例&nbsp;2：</strong></p>\n\n<p><a href=\"https://assets.leetcode.com/uploads/2018/12/13/160_example_2.png\" target=\"_blank\"><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2018/12/14/160_example_2.png\" style=\"height: 136px; width: 350px;\"></a></p>\n\n<pre><strong>输入：</strong>intersectVal&nbsp;= 2, listA = [0,9,1,2,4], listB = [3,2,4], skipA = 3, skipB = 1\n<strong>输出：</strong>Reference of the node with value = 2\n<strong>输入解释：</strong>相交节点的值为 2 （注意，如果两个列表相交则不能为 0）。从各自的表头开始算起，链表 A 为 [0,9,1,2,4]，链表 B 为 [3,2,4]。在 A 中，相交节点前有 3 个节点；在 B 中，相交节点前有 1 个节点。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>示例&nbsp;3：</strong></p>\n\n<p><a href=\"https://assets.leetcode.com/uploads/2018/12/13/160_example_3.png\" target=\"_blank\"><img alt=\"\" src=\"https://assets.leetcode-cn.com/aliyun-lc-upload/uploads/2018/12/14/160_example_3.png\" style=\"height: 126px; width: 200px;\"></a></p>\n\n<pre><strong>输入：</strong>intersectVal = 0, listA = [2,6,4], listB = [1,5], skipA = 3, skipB = 2\n<strong>输出：</strong>null\n<strong>输入解释：</strong>从各自的表头开始算起，链表 A 为 [2,6,4]，链表 B 为 [1,5]。由于这两个链表不相交，所以 intersectVal 必须为 0，而 skipA 和 skipB 可以是任意值。\n<strong>解释：</strong>这两个链表不相交，因此返回 null。\n</pre>\n\n<p>&nbsp;</p>\n\n<p><strong>注意：</strong></p>\n\n<ul>\n\t<li>如果两个链表没有交点，返回 <code>null</code>.</li>\n\t<li>在返回结果后，两个链表仍须保持原有的结构。</li>\n\t<li>可假定整个链表结构中没有循环。</li>\n\t<li>程序尽量满足 O(<em>n</em>) 时间复杂度，且仅用 O(<em>1</em>) 内存。</li>\n\t<li>本题与主站 160 题相同：<a href=\"https://leetcode-cn.com/problems/intersection-of-two-linked-lists/\">https://leetcode-cn.com/problems/intersection-of-two-linked-lists/</a></li>\n</ul>\n",
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