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标题:
Golang | Leetcode Golang题解之第257题二叉树的所有路径
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作者:
慢吞云雾缓吐愁
时间:
2024-7-23 20:02
标题:
Golang | Leetcode Golang题解之第257题二叉树的所有路径
题目:
题解:
func binaryTreePaths(root *TreeNode) []string {
paths := []string{}
if root == nil {
return paths
}
nodeQueue := []*TreeNode{}
pathQueue := []string{}
nodeQueue = append(nodeQueue, root)
pathQueue = append(pathQueue, strconv.Itoa(root.Val))
for i := 0; i < len(nodeQueue); i++ {
node, path := nodeQueue[i], pathQueue[i]
if node.Left == nil && node.Right == nil {
paths = append(paths, path)
continue
}
if node.Left != nil {
nodeQueue = append(nodeQueue, node.Left)
pathQueue = append(pathQueue, path + "->" + strconv.Itoa(node.Left.Val))
}
if node.Right != nil {
nodeQueue = append(nodeQueue, node.Right)
pathQueue = append(pathQueue, path + "->" + strconv.Itoa(node.Right.Val))
}
}
return paths
}
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