Merge branch 'krahets:master' into typescript

codes/javascript/chapter_searching/binary_search.js

@@ -0,0 +1,53 @@
+/**
+ * File: binary_search.js
+ * Created Time: 2022-12-22
+ * Author: JoseHung (szhong@link.cuhk.edu.hk)
+ */
+
+/* 二分查找（双闭区间） */
+function binarySearch(nums, target) {
+    // 初始化双闭区间 [0, n-1] ，即 i, j 分别指向数组首元素、尾元素
+    let i = 0, j = nums.length - 1;
+    // 循环，当搜索区间为空时跳出（当 i > j 时为空）
+    while (i <= j) {
+        let m = parseInt((i + j) / 2); // 计算中点索引 m ，在 JS 中需使用 parseInt 函数取整
+        if (nums[m] < target)          // 此情况说明 target 在区间 [m+1, j] 中
+            i = m + 1;
+        else if (nums[m] > target)     // 此情况说明 target 在区间 [i, m-1] 中
+            j = m - 1;
+        else
+            return m;                  // 找到目标元素，返回其索引
+    }
+    // 未找到目标元素，返回 -1
+    return -1;
+}
+
+/* 二分查找（左闭右开） */
+function binarySearch1(nums, target) {
+    // 初始化左闭右开 [0, n) ，即 i, j 分别指向数组首元素、尾元素+1
+    let i = 0, j = nums.length;
+    // 循环，当搜索区间为空时跳出（当 i = j 时为空）
+    while (i < j) {
+        let m = parseInt((i + j) / 2); // 计算中点索引 m ，在 JS 中需使用 parseInt 函数取整
+        if (nums[m] < target)          // 此情况说明 target 在区间 [m+1, j) 中
+            i = m + 1;
+        else if (nums[m] > target)     // 此情况说明 target 在区间 [i, m) 中
+            j = m;
+        else                           // 找到目标元素，返回其索引
+            return m;
+    }
+    // 未找到目标元素，返回 -1
+    return -1;
+}
+
+/* Driver Code */
+var target = 6;
+var nums = [1, 3, 6, 8, 12, 15, 23, 67, 70, 92];
+
+/* 二分查找（双闭区间） */
+var index = binarySearch(nums, target);
+console.log("目标元素 6 的索引 = " + index);
+
+/* 二分查找（左闭右开） */
+index = binarySearch1(nums, target);
+console.log("目标元素 6 的索引 = " + index);

codes/javascript/chapter_searching/linear_search.js

@@ -0,0 +1,48 @@
+/**
+ * File: linear-search.js
+ * Created Time: 2022-12-22
+ * Author: JoseHung (szhong@link.cuhk.edu.hk)
+ */
+
+const ListNode = require("../include/ListNode");
+
+/* 线性查找（数组） */
+function linearSearchArray(nums, target) {
+    // 遍历数组
+    for (let i = 0; i < nums.length; i++) {
+        // 找到目标元素，返回其索引
+        if (nums[i] === target) {
+            return i;
+        }
+    }
+    // 未找到目标元素，返回 -1
+    return -1; 
+}
+
+/* 线性查找（链表）*/
+function linearSearchLinkedList(head, target) {
+    // 遍历链表
+    while(head) {
+        // 找到目标结点，返回之
+        if(head.val === target) {
+            return head;
+        }
+        head = head.next;
+    }
+    // 未找到目标结点，返回 null
+    return null;
+}
+
+/* Driver Code */
+var target = 3;
+
+/* 在数组中执行线性查找 */
+var nums = [1, 5, 3, 2, 4, 7, 5, 9, 10, 8];
+var index = linearSearchArray(nums, target);
+console.log("目标元素 3 的索引 = " + index);
+
+/* 在链表中执行线性查找 */
+var linkedList = new ListNode();
+var head = linkedList.arrToLinkedList(nums);
+var node = linearSearchLinkedList(head, target);
+console.log("目标结点值 3 的对应结点对象为 " + node);

codes/javascript/include/ListNode.js

@@ -22,7 +22,7 @@ class ListNode {
      */
     arrToLinkedList(arr) {
         const dum = new ListNode(0);
-        const head = dum;
+        let head = dum;
         for (const val of arr) {
             head.next = new ListNode(val);
             head = head.next;

codes/python/chapter_array_and_linkedlist/array.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: array.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_array_and_linkedlist/linked_list.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: linked_list.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_array_and_linkedlist/list.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: list.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_array_and_linkedlist/my_list.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: my_list.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_computational_complexity/leetcode_two_sum.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: leetcode_two_sum.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_computational_complexity/space_complexity.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: space_complexity.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_computational_complexity/time_complexity.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: time_complexity.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_computational_complexity/worst_best_time_complexity.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: worst_best_time_complexity.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_searching/binary_search.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_search.py
 Created Time: 2022-11-26
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_searching/hashing_search.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: hashing_search.py
 Created Time: 2022-11-26
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_searching/linear_search.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: linear_search.py
 Created Time: 2022-11-26
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_sorting/bubble_sort.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: bubble_sort.py
 Created Time: 2022-11-25
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_sorting/insertion_sort.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: insertion_sort.py
 Created Time: 2022-11-25
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_sorting/merge_sort.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: merge_sort.py
 Created Time: 2022-11-25
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_sorting/quick_sort.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: quick_sort.py
 Created Time: 2022-11-25
 Author: timi (xisunyy@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_stack_and_queue/array_queue.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: array_queue.py
 Created Time: 2022-12-01
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import os.path as osp
 import sys

codes/python/chapter_stack_and_queue/array_stack.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: array_stack.py
 Created Time: 2022-11-29
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_stack_and_queue/deque.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: deque.py
 Created Time: 2022-11-29
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import os.path as osp
 import sys

codes/python/chapter_stack_and_queue/linkedlist_queue.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: linkedlist_queue.py
 Created Time: 2022-12-01
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import os.path as osp
 import sys

codes/python/chapter_stack_and_queue/linkedlist_stack.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: linkedlist_stack.py
 Created Time: 2022-11-29
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_stack_and_queue/queue.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: queue.py
 Created Time: 2022-11-29
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import os.path as osp
 import sys

codes/python/chapter_stack_and_queue/stack.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: stack.py
 Created Time: 2022-11-29
 Author: Peng Chen (pengchzn@gmail.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_tree/binary_search_tree.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_search_tree.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_tree/binary_tree.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_tree.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_tree/binary_tree_bfs.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_tree_bfs.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/chapter_tree/binary_tree_dfs.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_tree_dfs.py
 Created Time: 2022-11-25
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import sys, os.path as osp
 sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))

codes/python/include/binary_tree.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: binary_tree.py
 Created Time: 2021-12-11
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 import collections
 

codes/python/include/linked_list.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: linked_list.py
 Created Time: 2021-12-11
 Author: Krahets (krahets@163.com)
-'''
+"""
 
 class ListNode:
     """Definition for a singly-linked list node

codes/python/include/print_util.py

@@ -1,8 +1,8 @@
-'''
+"""
 File: print_util.py
 Created Time: 2021-12-11
 Author: Krahets (krahets@163.com), msk397 (machangxinq@gmail.com)
-'''
+"""
 
 import copy
 import queue