lowest_common_ancestor
lowest_common_ancestor.go 源码
package main
//二叉树的最近公共祖先
func lowestCommonAncestor(root, p, q *TreeNode) *TreeNode {
if root == nil || root == p || root == q {
return root
}
left := lowestCommonAncestor(root.Left, p, q)
right := lowestCommonAncestor(root.Right, p, q)
if left != nil && right != nil {
return root
}
if left != nil {
return left
}
return right
}
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