algo/di-yi-zhan-da78c/shou-ba-sh-66994/git-yuan-l-ba4cf/ #1458
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通透! |
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在 find 函数的前序位置,如果找到一个值为 val1 或 val2 的节点则直接返回,恰好解决了第二种情况: |
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东哥 这个思路没问题但是具体代码和leetcode的逻辑有冲突,leetcode想让你直接把p和q作为ListNode 比较 而不是比较他们的值, 具体体现为,在1644. 二叉树的最近公共祖先 II 这道题里面,如果q不存在数里面,理论上讲q作为一个ListNode 依旧是存在的。但是leetcode里,q直接就是null 而q.val也压根不存在,这就意味着他想让你比较的是listnode本身 |
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algo/di-yi-zhan-da78c/shou-ba-sh-66994/git-yuan-l-ba4cf/
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