23 lines
530 B
C#
23 lines
530 B
C#
namespace _589._N_ary_Tree_Preorder_Traversal;
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public class Solution
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{
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public IList<int> Preorder(Node root)
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{
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List<int> list = new List<int>();
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RecursiveTraversal(list, root);
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return list;
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}
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private void RecursiveTraversal(List<int> output, Node cur)
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{
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if (cur == null)
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return;
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output.Add(cur.val);
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if (cur.children == null)
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return;
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foreach (var child in cur.children)
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RecursiveTraversal(output, child);
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}
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}
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