31 lines
492 B
Go
31 lines
492 B
Go
package main
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type TreeNode struct {
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Val int
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Left *TreeNode
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Right *TreeNode
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}
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/**
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* Definition for a binary tree node.
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* type TreeNode struct {
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* Val int
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* Left *TreeNode
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* Right *TreeNode
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* }
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*/
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func lowestCommonAncestor(root, p, q *TreeNode) *TreeNode {
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min, max := p, q
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if p.Val > q.Val {
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min, max = q, p
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}
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for root.Val < min.Val || root.Val > max.Val {
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if root.Val < min.Val {
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root = root.Right
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} else {
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root = root.Left
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}
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}
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return root
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}
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