mirror of
https://github.com/krahets/hello-algo.git
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feat: Traditional Chinese version (#1163)
* First commit * Update mkdocs.yml * Translate all the docs to traditional Chinese * Translate the code files. * Translate the docker file * Fix mkdocs.yml * Translate all the figures from SC to TC * 二叉搜尋樹 -> 二元搜尋樹 * Update terminology. * Update terminology * 构造函数/构造方法 -> 建構子 异或 -> 互斥或 * 擴充套件 -> 擴展 * constant - 常量 - 常數 * 類 -> 類別 * AVL -> AVL 樹 * 數組 -> 陣列 * 係統 -> 系統 斐波那契數列 -> 費波那契數列 運算元量 -> 運算量 引數 -> 參數 * 聯絡 -> 關聯 * 麵試 -> 面試 * 面向物件 -> 物件導向 歸併排序 -> 合併排序 范式 -> 範式 * Fix 算法 -> 演算法 * 錶示 -> 表示 反碼 -> 一補數 補碼 -> 二補數 列列尾部 -> 佇列尾部 區域性性 -> 區域性 一摞 -> 一疊 * Synchronize with main branch * 賬號 -> 帳號 推匯 -> 推導 * Sync with main branch * First commit * Update mkdocs.yml * Translate all the docs to traditional Chinese * Translate the code files. * Translate the docker file * Fix mkdocs.yml * Translate all the figures from SC to TC * 二叉搜尋樹 -> 二元搜尋樹 * Update terminology * 构造函数/构造方法 -> 建構子 异或 -> 互斥或 * 擴充套件 -> 擴展 * constant - 常量 - 常數 * 類 -> 類別 * AVL -> AVL 樹 * 數組 -> 陣列 * 係統 -> 系統 斐波那契數列 -> 費波那契數列 運算元量 -> 運算量 引數 -> 參數 * 聯絡 -> 關聯 * 麵試 -> 面試 * 面向物件 -> 物件導向 歸併排序 -> 合併排序 范式 -> 範式 * Fix 算法 -> 演算法 * 錶示 -> 表示 反碼 -> 一補數 補碼 -> 二補數 列列尾部 -> 佇列尾部 區域性性 -> 區域性 一摞 -> 一疊 * Synchronize with main branch * 賬號 -> 帳號 推匯 -> 推導 * Sync with main branch * Update terminology.md * 操作数量(num. of operations)-> 操作數量 * 字首和->前綴和 * Update figures * 歸 -> 迴 記憶體洩漏 -> 記憶體流失 * Fix the bug of the file filter * 支援 -> 支持 Add zh-Hant/README.md * Add the zh-Hant chapter covers. Bug fixes. * 外掛 -> 擴充功能 * Add the landing page for zh-Hant version * Unify the font of the chapter covers for the zh, en, and zh-Hant version * Move zh-Hant/ to zh-hant/ * Translate terminology.md to traditional Chinese
This commit is contained in:
@@ -0,0 +1,119 @@
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"""
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File: array_binary_tree.py
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Created Time: 2023-07-19
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Author: krahets (krahets@163.com)
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"""
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import sys
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from pathlib import Path
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sys.path.append(str(Path(__file__).parent.parent))
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from modules import TreeNode, list_to_tree, print_tree
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class ArrayBinaryTree:
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"""陣列表示下的二元樹類別"""
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def __init__(self, arr: list[int | None]):
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"""建構子"""
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self._tree = list(arr)
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def size(self):
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"""串列容量"""
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return len(self._tree)
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def val(self, i: int) -> int:
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"""獲取索引為 i 節點的值"""
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# 若索引越界,則返回 None ,代表空位
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if i < 0 or i >= self.size():
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return None
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return self._tree[i]
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def left(self, i: int) -> int | None:
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"""獲取索引為 i 節點的左子節點的索引"""
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return 2 * i + 1
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def right(self, i: int) -> int | None:
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"""獲取索引為 i 節點的右子節點的索引"""
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return 2 * i + 2
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def parent(self, i: int) -> int | None:
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"""獲取索引為 i 節點的父節點的索引"""
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return (i - 1) // 2
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def level_order(self) -> list[int]:
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"""層序走訪"""
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self.res = []
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# 直接走訪陣列
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for i in range(self.size()):
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if self.val(i) is not None:
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self.res.append(self.val(i))
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return self.res
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def dfs(self, i: int, order: str):
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"""深度優先走訪"""
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if self.val(i) is None:
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return
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# 前序走訪
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if order == "pre":
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self.res.append(self.val(i))
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self.dfs(self.left(i), order)
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# 中序走訪
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if order == "in":
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self.res.append(self.val(i))
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self.dfs(self.right(i), order)
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# 後序走訪
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if order == "post":
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self.res.append(self.val(i))
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def pre_order(self) -> list[int]:
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"""前序走訪"""
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self.res = []
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self.dfs(0, order="pre")
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return self.res
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def in_order(self) -> list[int]:
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"""中序走訪"""
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self.res = []
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self.dfs(0, order="in")
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return self.res
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def post_order(self) -> list[int]:
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"""後序走訪"""
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self.res = []
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self.dfs(0, order="post")
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return self.res
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"""Driver Code"""
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if __name__ == "__main__":
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# 初始化二元樹
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# 這裡藉助了一個從陣列直接生成二元樹的函式
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arr = [1, 2, 3, 4, None, 6, 7, 8, 9, None, None, 12, None, None, 15]
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root = list_to_tree(arr)
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print("\n初始化二元樹\n")
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print("二元樹的陣列表示:")
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print(arr)
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print("二元樹的鏈結串列表示:")
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print_tree(root)
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# 陣列表示下的二元樹類別
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abt = ArrayBinaryTree(arr)
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# 訪問節點
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i = 1
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l, r, p = abt.left(i), abt.right(i), abt.parent(i)
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print(f"\n當前節點的索引為 {i} ,值為 {abt.val(i)}")
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print(f"其左子節點的索引為 {l} ,值為 {abt.val(l)}")
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print(f"其右子節點的索引為 {r} ,值為 {abt.val(r)}")
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print(f"其父節點的索引為 {p} ,值為 {abt.val(p)}")
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# 走訪樹
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res = abt.level_order()
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print("\n層序走訪為:", res)
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res = abt.pre_order()
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print("前序走訪為:", res)
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res = abt.in_order()
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print("中序走訪為:", res)
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res = abt.post_order()
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print("後序走訪為:", res)
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@@ -0,0 +1,200 @@
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"""
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File: avl_tree.py
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Created Time: 2022-12-20
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Author: a16su (lpluls001@gmail.com)
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"""
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import sys
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from pathlib import Path
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sys.path.append(str(Path(__file__).parent.parent))
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from modules import TreeNode, print_tree
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class AVLTree:
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"""AVL 樹"""
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def __init__(self):
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"""建構子"""
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self._root = None
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def get_root(self) -> TreeNode | None:
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"""獲取二元樹根節點"""
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return self._root
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def height(self, node: TreeNode | None) -> int:
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"""獲取節點高度"""
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# 空節點高度為 -1 ,葉節點高度為 0
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if node is not None:
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return node.height
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return -1
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def update_height(self, node: TreeNode | None):
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"""更新節點高度"""
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# 節點高度等於最高子樹高度 + 1
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node.height = max([self.height(node.left), self.height(node.right)]) + 1
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def balance_factor(self, node: TreeNode | None) -> int:
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"""獲取平衡因子"""
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# 空節點平衡因子為 0
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if node is None:
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return 0
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# 節點平衡因子 = 左子樹高度 - 右子樹高度
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return self.height(node.left) - self.height(node.right)
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def right_rotate(self, node: TreeNode | None) -> TreeNode | None:
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"""右旋操作"""
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child = node.left
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grand_child = child.right
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# 以 child 為原點,將 node 向右旋轉
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child.right = node
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node.left = grand_child
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# 更新節點高度
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self.update_height(node)
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self.update_height(child)
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# 返回旋轉後子樹的根節點
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return child
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def left_rotate(self, node: TreeNode | None) -> TreeNode | None:
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"""左旋操作"""
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child = node.right
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grand_child = child.left
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# 以 child 為原點,將 node 向左旋轉
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child.left = node
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node.right = grand_child
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# 更新節點高度
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self.update_height(node)
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self.update_height(child)
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# 返回旋轉後子樹的根節點
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return child
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def rotate(self, node: TreeNode | None) -> TreeNode | None:
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"""執行旋轉操作,使該子樹重新恢復平衡"""
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# 獲取節點 node 的平衡因子
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balance_factor = self.balance_factor(node)
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# 左偏樹
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if balance_factor > 1:
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if self.balance_factor(node.left) >= 0:
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# 右旋
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return self.right_rotate(node)
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else:
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# 先左旋後右旋
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node.left = self.left_rotate(node.left)
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return self.right_rotate(node)
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# 右偏樹
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elif balance_factor < -1:
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if self.balance_factor(node.right) <= 0:
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# 左旋
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return self.left_rotate(node)
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else:
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# 先右旋後左旋
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node.right = self.right_rotate(node.right)
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return self.left_rotate(node)
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# 平衡樹,無須旋轉,直接返回
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return node
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def insert(self, val):
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"""插入節點"""
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self._root = self.insert_helper(self._root, val)
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def insert_helper(self, node: TreeNode | None, val: int) -> TreeNode:
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"""遞迴插入節點(輔助方法)"""
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if node is None:
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return TreeNode(val)
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# 1. 查詢插入位置並插入節點
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if val < node.val:
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node.left = self.insert_helper(node.left, val)
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elif val > node.val:
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node.right = self.insert_helper(node.right, val)
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else:
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# 重複節點不插入,直接返回
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return node
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# 更新節點高度
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self.update_height(node)
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# 2. 執行旋轉操作,使該子樹重新恢復平衡
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return self.rotate(node)
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def remove(self, val: int):
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"""刪除節點"""
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self._root = self.remove_helper(self._root, val)
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def remove_helper(self, node: TreeNode | None, val: int) -> TreeNode | None:
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"""遞迴刪除節點(輔助方法)"""
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if node is None:
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return None
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# 1. 查詢節點並刪除
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if val < node.val:
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node.left = self.remove_helper(node.left, val)
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elif val > node.val:
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node.right = self.remove_helper(node.right, val)
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else:
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if node.left is None or node.right is None:
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child = node.left or node.right
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# 子節點數量 = 0 ,直接刪除 node 並返回
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if child is None:
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return None
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# 子節點數量 = 1 ,直接刪除 node
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else:
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node = child
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else:
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# 子節點數量 = 2 ,則將中序走訪的下個節點刪除,並用該節點替換當前節點
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temp = node.right
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while temp.left is not None:
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temp = temp.left
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node.right = self.remove_helper(node.right, temp.val)
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node.val = temp.val
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# 更新節點高度
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self.update_height(node)
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# 2. 執行旋轉操作,使該子樹重新恢復平衡
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return self.rotate(node)
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def search(self, val: int) -> TreeNode | None:
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"""查詢節點"""
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cur = self._root
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# 迴圈查詢,越過葉節點後跳出
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while cur is not None:
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# 目標節點在 cur 的右子樹中
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if cur.val < val:
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cur = cur.right
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# 目標節點在 cur 的左子樹中
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elif cur.val > val:
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cur = cur.left
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# 找到目標節點,跳出迴圈
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else:
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break
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# 返回目標節點
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return cur
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"""Driver Code"""
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if __name__ == "__main__":
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def test_insert(tree: AVLTree, val: int):
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tree.insert(val)
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print("\n插入節點 {} 後,AVL 樹為".format(val))
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print_tree(tree.get_root())
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def test_remove(tree: AVLTree, val: int):
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tree.remove(val)
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print("\n刪除節點 {} 後,AVL 樹為".format(val))
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print_tree(tree.get_root())
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# 初始化空 AVL 樹
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avl_tree = AVLTree()
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# 插入節點
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# 請關注插入節點後,AVL 樹是如何保持平衡的
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for val in [1, 2, 3, 4, 5, 8, 7, 9, 10, 6]:
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test_insert(avl_tree, val)
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# 插入重複節點
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test_insert(avl_tree, 7)
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# 刪除節點
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# 請關注刪除節點後,AVL 樹是如何保持平衡的
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test_remove(avl_tree, 8) # 刪除度為 0 的節點
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test_remove(avl_tree, 5) # 刪除度為 1 的節點
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test_remove(avl_tree, 4) # 刪除度為 2 的節點
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result_node = avl_tree.search(7)
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print("\n查詢到的節點物件為 {},節點值 = {}".format(result_node, result_node.val))
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@@ -0,0 +1,146 @@
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"""
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File: binary_search_tree.py
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Created Time: 2022-12-20
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Author: a16su (lpluls001@gmail.com)
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"""
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import sys
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from pathlib import Path
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sys.path.append(str(Path(__file__).parent.parent))
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from modules import TreeNode, print_tree
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class BinarySearchTree:
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"""二元搜尋樹"""
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def __init__(self):
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"""建構子"""
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# 初始化空樹
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self._root = None
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def get_root(self) -> TreeNode | None:
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"""獲取二元樹根節點"""
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return self._root
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def search(self, num: int) -> TreeNode | None:
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"""查詢節點"""
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cur = self._root
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# 迴圈查詢,越過葉節點後跳出
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while cur is not None:
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# 目標節點在 cur 的右子樹中
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if cur.val < num:
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cur = cur.right
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# 目標節點在 cur 的左子樹中
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elif cur.val > num:
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cur = cur.left
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# 找到目標節點,跳出迴圈
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else:
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break
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return cur
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def insert(self, num: int):
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"""插入節點"""
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# 若樹為空,則初始化根節點
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if self._root is None:
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self._root = TreeNode(num)
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return
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# 迴圈查詢,越過葉節點後跳出
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cur, pre = self._root, None
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while cur is not None:
|
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# 找到重複節點,直接返回
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if cur.val == num:
|
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return
|
||||
pre = cur
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# 插入位置在 cur 的右子樹中
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||||
if cur.val < num:
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cur = cur.right
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# 插入位置在 cur 的左子樹中
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||||
else:
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cur = cur.left
|
||||
# 插入節點
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node = TreeNode(num)
|
||||
if pre.val < num:
|
||||
pre.right = node
|
||||
else:
|
||||
pre.left = node
|
||||
|
||||
def remove(self, num: int):
|
||||
"""刪除節點"""
|
||||
# 若樹為空,直接提前返回
|
||||
if self._root is None:
|
||||
return
|
||||
# 迴圈查詢,越過葉節點後跳出
|
||||
cur, pre = self._root, None
|
||||
while cur is not None:
|
||||
# 找到待刪除節點,跳出迴圈
|
||||
if cur.val == num:
|
||||
break
|
||||
pre = cur
|
||||
# 待刪除節點在 cur 的右子樹中
|
||||
if cur.val < num:
|
||||
cur = cur.right
|
||||
# 待刪除節點在 cur 的左子樹中
|
||||
else:
|
||||
cur = cur.left
|
||||
# 若無待刪除節點,則直接返回
|
||||
if cur is None:
|
||||
return
|
||||
|
||||
# 子節點數量 = 0 or 1
|
||||
if cur.left is None or cur.right is None:
|
||||
# 當子節點數量 = 0 / 1 時, child = null / 該子節點
|
||||
child = cur.left or cur.right
|
||||
# 刪除節點 cur
|
||||
if cur != self._root:
|
||||
if pre.left == cur:
|
||||
pre.left = child
|
||||
else:
|
||||
pre.right = child
|
||||
else:
|
||||
# 若刪除節點為根節點,則重新指定根節點
|
||||
self._root = child
|
||||
# 子節點數量 = 2
|
||||
else:
|
||||
# 獲取中序走訪中 cur 的下一個節點
|
||||
tmp: TreeNode = cur.right
|
||||
while tmp.left is not None:
|
||||
tmp = tmp.left
|
||||
# 遞迴刪除節點 tmp
|
||||
self.remove(tmp.val)
|
||||
# 用 tmp 覆蓋 cur
|
||||
cur.val = tmp.val
|
||||
|
||||
|
||||
"""Driver Code"""
|
||||
if __name__ == "__main__":
|
||||
# 初始化二元搜尋樹
|
||||
bst = BinarySearchTree()
|
||||
nums = [8, 4, 12, 2, 6, 10, 14, 1, 3, 5, 7, 9, 11, 13, 15]
|
||||
# 請注意,不同的插入順序會生成不同的二元樹,該序列可以生成一個完美二元樹
|
||||
for num in nums:
|
||||
bst.insert(num)
|
||||
print("\n初始化的二元樹為\n")
|
||||
print_tree(bst.get_root())
|
||||
|
||||
# 查詢節點
|
||||
node = bst.search(7)
|
||||
print("\n查詢到的節點物件為: {},節點值 = {}".format(node, node.val))
|
||||
|
||||
# 插入節點
|
||||
bst.insert(16)
|
||||
print("\n插入節點 16 後,二元樹為\n")
|
||||
print_tree(bst.get_root())
|
||||
|
||||
# 刪除節點
|
||||
bst.remove(1)
|
||||
print("\n刪除節點 1 後,二元樹為\n")
|
||||
print_tree(bst.get_root())
|
||||
|
||||
bst.remove(2)
|
||||
print("\n刪除節點 2 後,二元樹為\n")
|
||||
print_tree(bst.get_root())
|
||||
|
||||
bst.remove(4)
|
||||
print("\n刪除節點 4 後,二元樹為\n")
|
||||
print_tree(bst.get_root())
|
||||
@@ -0,0 +1,41 @@
|
||||
"""
|
||||
File: binary_tree.py
|
||||
Created Time: 2022-12-20
|
||||
Author: a16su (lpluls001@gmail.com)
|
||||
"""
|
||||
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
sys.path.append(str(Path(__file__).parent.parent))
|
||||
from modules import TreeNode, print_tree
|
||||
|
||||
|
||||
"""Driver Code"""
|
||||
if __name__ == "__main__":
|
||||
# 初始化二元樹
|
||||
# 初始化節點
|
||||
n1 = TreeNode(val=1)
|
||||
n2 = TreeNode(val=2)
|
||||
n3 = TreeNode(val=3)
|
||||
n4 = TreeNode(val=4)
|
||||
n5 = TreeNode(val=5)
|
||||
# 構建節點之間的引用(指標)
|
||||
n1.left = n2
|
||||
n1.right = n3
|
||||
n2.left = n4
|
||||
n2.right = n5
|
||||
print("\n初始化二元樹\n")
|
||||
print_tree(n1)
|
||||
|
||||
# 插入與刪除節點
|
||||
P = TreeNode(0)
|
||||
# 在 n1 -> n2 中間插入節點 P
|
||||
n1.left = P
|
||||
P.left = n2
|
||||
print("\n插入節點 P 後\n")
|
||||
print_tree(n1)
|
||||
# 刪除節點
|
||||
n1.left = n2
|
||||
print("\n刪除節點 P 後\n")
|
||||
print_tree(n1)
|
||||
@@ -0,0 +1,42 @@
|
||||
"""
|
||||
File: binary_tree_bfs.py
|
||||
Created Time: 2022-12-20
|
||||
Author: a16su (lpluls001@gmail.com)
|
||||
"""
|
||||
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
sys.path.append(str(Path(__file__).parent.parent))
|
||||
from modules import TreeNode, list_to_tree, print_tree
|
||||
from collections import deque
|
||||
|
||||
|
||||
def level_order(root: TreeNode | None) -> list[int]:
|
||||
"""層序走訪"""
|
||||
# 初始化佇列,加入根節點
|
||||
queue: deque[TreeNode] = deque()
|
||||
queue.append(root)
|
||||
# 初始化一個串列,用於儲存走訪序列
|
||||
res = []
|
||||
while queue:
|
||||
node: TreeNode = queue.popleft() # 隊列出隊
|
||||
res.append(node.val) # 儲存節點值
|
||||
if node.left is not None:
|
||||
queue.append(node.left) # 左子節點入列
|
||||
if node.right is not None:
|
||||
queue.append(node.right) # 右子節點入列
|
||||
return res
|
||||
|
||||
|
||||
"""Driver Code"""
|
||||
if __name__ == "__main__":
|
||||
# 初始化二元樹
|
||||
# 這裡藉助了一個從陣列直接生成二元樹的函式
|
||||
root: TreeNode = list_to_tree(arr=[1, 2, 3, 4, 5, 6, 7])
|
||||
print("\n初始化二元樹\n")
|
||||
print_tree(root)
|
||||
|
||||
# 層序走訪
|
||||
res: list[int] = level_order(root)
|
||||
print("\n層序走訪的節點列印序列 = ", res)
|
||||
@@ -0,0 +1,65 @@
|
||||
"""
|
||||
File: binary_tree_dfs.py
|
||||
Created Time: 2022-12-20
|
||||
Author: a16su (lpluls001@gmail.com)
|
||||
"""
|
||||
|
||||
import sys
|
||||
from pathlib import Path
|
||||
|
||||
sys.path.append(str(Path(__file__).parent.parent))
|
||||
from modules import TreeNode, list_to_tree, print_tree
|
||||
|
||||
|
||||
def pre_order(root: TreeNode | None):
|
||||
"""前序走訪"""
|
||||
if root is None:
|
||||
return
|
||||
# 訪問優先順序:根節點 -> 左子樹 -> 右子樹
|
||||
res.append(root.val)
|
||||
pre_order(root=root.left)
|
||||
pre_order(root=root.right)
|
||||
|
||||
|
||||
def in_order(root: TreeNode | None):
|
||||
"""中序走訪"""
|
||||
if root is None:
|
||||
return
|
||||
# 訪問優先順序:左子樹 -> 根節點 -> 右子樹
|
||||
in_order(root=root.left)
|
||||
res.append(root.val)
|
||||
in_order(root=root.right)
|
||||
|
||||
|
||||
def post_order(root: TreeNode | None):
|
||||
"""後序走訪"""
|
||||
if root is None:
|
||||
return
|
||||
# 訪問優先順序:左子樹 -> 右子樹 -> 根節點
|
||||
post_order(root=root.left)
|
||||
post_order(root=root.right)
|
||||
res.append(root.val)
|
||||
|
||||
|
||||
"""Driver Code"""
|
||||
if __name__ == "__main__":
|
||||
# 初始化二元樹
|
||||
# 這裡藉助了一個從陣列直接生成二元樹的函式
|
||||
root = list_to_tree(arr=[1, 2, 3, 4, 5, 6, 7])
|
||||
print("\n初始化二元樹\n")
|
||||
print_tree(root)
|
||||
|
||||
# 前序走訪
|
||||
res = []
|
||||
pre_order(root)
|
||||
print("\n前序走訪的節點列印序列 = ", res)
|
||||
|
||||
# 中序走訪
|
||||
res.clear()
|
||||
in_order(root)
|
||||
print("\n中序走訪的節點列印序列 = ", res)
|
||||
|
||||
# 後序走訪
|
||||
res.clear()
|
||||
post_order(root)
|
||||
print("\n後序走訪的節點列印序列 = ", res)
|
||||
Reference in New Issue
Block a user