CS_learn/hello-algo
1
0
Fork 0
mirror of https://github.com/krahets/hello-algo.git synced 2026-04-04 19:20:52 +08:00
Code Issues Packages Projects Releases Wiki Activity

Translate all code to English (#1836)

Browse Source 
* Review the EN heading format.

* Fix pythontutor headings.

* Fix pythontutor headings.

* bug fixes

* Fix headings in **/summary.md

* Revisit the CN-to-EN translation for Python code using Claude-4.5

* Revisit the CN-to-EN translation for Java code using Claude-4.5

* Revisit the CN-to-EN translation for Cpp code using Claude-4.5.

* Fix the dictionary.

* Fix cpp code translation for the multipart strings.

* Translate Go code to English.

* Update workflows to test EN code.

* Add EN translation for C.

* Add EN translation for CSharp.

* Add EN translation for Swift.

* Trigger the CI check.

* Revert.

* Update en/hash_map.md

* Add the EN version of Dart code.

* Add the EN version of Kotlin code.

* Add missing code files.

* Add the EN version of JavaScript code.

* Add the EN version of TypeScript code.

* Fix the workflows.

* Add the EN version of Ruby code.

* Add the EN version of Rust code.

* Update the CI check for the English version  code.

* Update Python CI check.

* Fix cmakelists for en/C code.

* Fix Ruby comments
This commit is contained in:
Yudong Jin
2025-12-31 07:44:52 +08:00
committed by GitHub
parent 45e1295241
commit 2778a6f9c7
1284 changed files with 71557 additions and 3275 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
en/codes/java/chapter_tree/avl_tree.java
View File

@@ -37,13 +37,13 @@ class AVLTree {
private TreeNode rightRotate(TreeNode node) {
TreeNode child = node.left;
TreeNode grandChild = child.right;
// Rotate node to the right around child
// Using child as pivot, rotate node to the right
child.right = node;
node.left = grandChild;
// Update node height
updateHeight(node);
updateHeight(child);
// Return the root of the subtree after rotation
// Return root node of subtree after rotation
return child;
}
@@ -51,19 +51,19 @@ class AVLTree {
private TreeNode leftRotate(TreeNode node) {
TreeNode child = node.right;
TreeNode grandChild = child.left;
// Rotate node to the left around child
// Using child as pivot, rotate node to the left
child.left = node;
node.right = grandChild;
// Update node height
updateHeight(node);
updateHeight(child);
// Return the root of the subtree after rotation
// Return root node of subtree after rotation
return child;
}
/* Perform rotation operation to restore balance to the subtree */
/* Perform rotation operation to restore balance to this subtree */
private TreeNode rotate(TreeNode node) {
// Get the balance factor of node
// Get balance factor of node
int balanceFactor = balanceFactor(node);
// Left-leaning tree
if (balanceFactor > 1) {
@@ -87,7 +87,7 @@ class AVLTree {
return leftRotate(node);
}
}
// Balanced tree, no rotation needed, return
// Balanced tree, no rotation needed, return directly
return node;
}
@@ -106,11 +106,11 @@ class AVLTree {
else if (val > node.val)
node.right = insertHelper(node.right, val);
else
return node; // Do not insert duplicate nodes, return
return node; // Duplicate node not inserted, return directly
updateHeight(node); // Update node height
/* 2. Perform rotation operation to restore balance to the subtree */
/* 2. Perform rotation operation to restore balance to this subtree */
node = rotate(node);
// Return the root node of the subtree
// Return root node of subtree
return node;
}
@@ -119,11 +119,11 @@ class AVLTree {
root = removeHelper(root, val);
}
/* Recursively remove node (helper method) */
/* Recursively delete node (helper method) */
private TreeNode removeHelper(TreeNode node, int val) {
if (node == null)
return null;
/* 1. Find and remove the node */
/* 1. Find node and delete */
if (val < node.val)
node.left = removeHelper(node.left, val);
else if (val > node.val)
@@ -131,14 +131,14 @@ class AVLTree {
else {
if (node.left == null || node.right == null) {
TreeNode child = node.left != null ? node.left : node.right;
// Number of child nodes = 0, remove node and return
// Number of child nodes = 0, delete node directly and return
if (child == null)
return null;
// Number of child nodes = 1, remove node
// Number of child nodes = 1, delete node directly
else
node = child;
} else {
// Number of child nodes = 2, remove the next node in in-order traversal and replace the current node with it
// Number of child nodes = 2, delete the next node in inorder traversal and replace current node with it
TreeNode temp = node.right;
while (temp.left != null) {
temp = temp.left;
@@ -148,16 +148,16 @@ class AVLTree {
}
}
updateHeight(node); // Update node height
/* 2. Perform rotation operation to restore balance to the subtree */
/* 2. Perform rotation operation to restore balance to this subtree */
node = rotate(node);
// Return the root node of the subtree
// Return root node of subtree
return node;
}
/* Search node */
public TreeNode search(int val) {
TreeNode cur = root;
// Loop find, break after passing leaf nodes
// Loop search, exit after passing leaf node
while (cur != null) {
// Target node is in cur's right subtree
if (cur.val < val)
@@ -165,7 +165,7 @@ class AVLTree {
// Target node is in cur's left subtree
else if (cur.val > val)
cur = cur.left;
// Found target node, break loop
// Found target node, exit loop
else
break;
}
@@ -177,22 +177,22 @@ class AVLTree {
public class avl_tree {
static void testInsert(AVLTree tree, int val) {
tree.insert(val);
System.out.println("\nAfter inserting node " + val + ", the AVL tree is ");
System.out.println("\nAfter inserting node " + val + ", AVL tree is");
PrintUtil.printTree(tree.root);
}
static void testRemove(AVLTree tree, int val) {
tree.remove(val);
System.out.println("\nAfter removing node " + val + ", the AVL tree is ");
System.out.println("\nAfter removing node " + val + ", AVL tree is");
PrintUtil.printTree(tree.root);
}
public static void main(String[] args) {
/* Initialize empty AVL tree */
/* Please pay attention to how the AVL tree maintains balance after inserting nodes */
AVLTree avlTree = new AVLTree();
/* Insert node */
// Notice how the AVL tree maintains balance after inserting nodes
// Delete nodes
testInsert(avlTree, 1);
testInsert(avlTree, 2);
testInsert(avlTree, 3);
@@ -204,17 +204,17 @@ public class avl_tree {
testInsert(avlTree, 10);
testInsert(avlTree, 6);
/* Insert duplicate node */
/* Please pay attention to how the AVL tree maintains balance after deleting nodes */
testInsert(avlTree, 7);
/* Remove node */
// Notice how the AVL tree maintains balance after removing nodes
testRemove(avlTree, 8); // Remove node with degree 0
// Delete node with degree 1
testRemove(avlTree, 8); // Delete node with degree 2
testRemove(avlTree, 5); // Remove node with degree 1
testRemove(avlTree, 4); // Remove node with degree 2
/* Search node */
TreeNode node = avlTree.search(7);
System.out.println("\nThe found node object is " + node + ", node value = " + node.val);
System.out.println("\nFound node object is " + node + ", node value = " + node.val);
}
}