Fix the codes of backtracking.
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3d4fb3dbd7
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1600ed6dee
@ -15,15 +15,12 @@ public class preorder_find_nodes {
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if (root == null) {
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return;
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}
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// 尝试
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if (root.val == 7) {
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// 记录解
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res.add(root);
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}
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preOrder(root.left);
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preOrder(root.right);
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// 回退
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return;
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}
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public static void main(String[] args) {
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@ -24,7 +24,6 @@ def pre_order(root: TreeNode) -> None:
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pre_order(root.right)
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# 回退
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path.pop()
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return
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"""Driver Code"""
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@ -23,7 +23,6 @@ def pre_order(root: TreeNode) -> None:
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pre_order(root.right)
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# 回退
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path.pop()
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return
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"""Driver Code"""
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