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* Fix is_empty() implementation in the stack and queue chapter * Update en/CONTRIBUTING.md * Remove "剩余" from the state definition of knapsack problem * Sync zh and zh-hant versions * Update the stylesheets of code tabs * Fix quick_sort.rb * Fix TS code * Update chapter_paperbook * Upload the manuscript of 0.1 section * Fix binary_tree_dfs.rb * Bug fixes * Update README * Update README * Update README * Update README.md * Update README * Sync zh and zh-hant versions * Bug fixes
39 lines
804 B
Ruby
39 lines
804 B
Ruby
=begin
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File: binary_tree.rb
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Created Time: 2024-04-18
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Author: Xuan Khoa Tu Nguyen (ngxktuzkai2000@gmail.com)
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=end
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require_relative '../utils/tree_node'
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require_relative '../utils/print_util'
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### Driver Code ###
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if __FILE__ == $0
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# 初始化二元樹
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# 初始化節點
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n1 = TreeNode.new(1)
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n2 = TreeNode.new(2)
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n3 = TreeNode.new(3)
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n4 = TreeNode.new(4)
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n5 = TreeNode.new(5)
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# 構建節點之間的引用（指標）
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n1.left = n2
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n1.right = n3
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n2.left = n4
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n2.right = n5
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puts "\n初始化二元樹\n\n"
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print_tree(n1)
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# 插入與刪除節點
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_p = TreeNode.new(0)
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# 在 n1 -> n2 中間插入節點 _p
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n1.left = _p
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_p.left = n2
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puts "\n插入節點 _p 後\n\n"
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print_tree(n1)
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# 刪除節點
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n1.left = n2
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puts "\n刪除節點 _p 後\n\n"
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print_tree(n1)
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end
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