Aug 26, 2022 · Aug 19, 2022 · Aug 20, 2022 · Aug 24, 2022 · Aug 24, 2022 · Aug 26, 2022
diff --git a/problems/0129.求根到叶子节点数字之和.md b/problems/0129.求根到叶子节点数字之和.md
Original file line number	Diff line number	Diff line change
Expand Up		@@ -250,22 +250,22 @@ Go:

		```go
		func sumNumbers(root *TreeNode) int {
	sum = 0
	travel(root, root.Val)
	return sum
	sum := 0
	dfs(root, root.Val, &sum)
	return sum
		}

	func travel(root *TreeNode, tmpSum int) {
	if root.Left == nil && root.Right == nil {
	sum += tmpSum
	} else {
	if root.Left != nil {
	travel(root.Left, tmpSum*10+root.Left.Val)
	}
	if root.Right != nil {
	travel(root.Right, tmpSum*10+root.Right.Val)
	}
	}
	func dfs(root TreeNode, tmpSum int, sum int) {
	if root.Left == nil && root.Right == nil {
	*sum += tmpSum
	} else {
	if root.Left != nil {
	dfs(root.Left, tmpSum*10 + root.Left.Val, sum)
	}
	if root.Right != nil {
	dfs(root.Right, tmpSum*10 + root.Right.Val, sum)
	}
	}
		}
		```

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