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![[Java] Leetcode 144. Binary Tree Preorder Traversal (Iteratively & Recursively) [Binary Tree #1]](/_next/image?url=https%3A%2F%2Fi.ytimg.com%2Fvi%2Fu2Py9rhxEuY%2Fhq720.jpg%3Fsqp%3D-oaymwEXCNAFEJQDSFryq4qpAwkIARUAAIhCGAE%3D%26rs%3DAOn4CLAHoeOV_ZRHDZSETJdwYKzGhmOWxA&w=256&q=75)
