Polish the content

Polish the chapter preface, introduction and complexity anlysis

codes/python/chapter_computational_complexity/space_complexity.py

@@ -35,9 +35,9 @@ def linear(n: int):
     # 长度为 n 的列表占用 O(n) 空间
     nums = [0] * n
     # 长度为 n 的哈希表占用 O(n) 空间
-    mapp = dict[int, str]()
+    hmap = dict[int, str]()
     for i in range(n):
-        mapp[i] = str(i)
+        hmap[i] = str(i)
 
 
 def linear_recur(n: int):

codes/python/chapter_computational_complexity/time_complexity.py

@@ -61,7 +61,7 @@ def exponential(n: int) -> int:
     """指数阶（循环实现）"""
     count = 0
     base = 1
-    # cell 每轮一分为二，形成数列 1, 2, 4, 8, ..., 2^(n-1)
+    # 细胞每轮一分为二，形成数列 1, 2, 4, 8, ..., 2^(n-1)
     for _ in range(n):
         for _ in range(base):
             count += 1

codes/python/chapter_hashing/array_hash_map.py

@@ -80,38 +80,38 @@ class ArrayHashMap:
 """Driver Code"""
 if __name__ == "__main__":
     # 初始化哈希表
-    mapp = ArrayHashMap()
+    hmap = ArrayHashMap()
 
     # 添加操作
     # 在哈希表中添加键值对 (key, value)
-    mapp.put(12836, "小哈")
-    mapp.put(15937, "小啰")
-    mapp.put(16750, "小算")
-    mapp.put(13276, "小法")
-    mapp.put(10583, "小鸭")
+    hmap.put(12836, "小哈")
+    hmap.put(15937, "小啰")
+    hmap.put(16750, "小算")
+    hmap.put(13276, "小法")
+    hmap.put(10583, "小鸭")
     print("\n添加完成后，哈希表为\nKey -> Value")
-    mapp.print()
+    hmap.print()
 
     # 查询操作
     # 向哈希表输入键 key ，得到值 value
-    name = mapp.get(15937)
+    name = hmap.get(15937)
     print("\n输入学号 15937 ，查询到姓名 " + name)
 
     # 删除操作
     # 在哈希表中删除键值对 (key, value)
-    mapp.remove(10583)
+    hmap.remove(10583)
     print("\n删除 10583 后，哈希表为\nKey -> Value")
-    mapp.print()
+    hmap.print()
 
     # 遍历哈希表
     print("\n遍历键值对 Key->Value")
-    for pair in mapp.entry_set():
+    for pair in hmap.entry_set():
         print(pair.key, "->", pair.val)
 
     print("\n单独遍历键 Key")
-    for key in mapp.key_set():
+    for key in hmap.key_set():
         print(key)
 
     print("\n单独遍历值 Value")
-    for val in mapp.value_set():
+    for val in hmap.value_set():
         print(val)

codes/python/chapter_hashing/hash_map.py

@@ -12,38 +12,38 @@ from modules import *
 """Driver Code"""
 if __name__ == "__main__":
     # 初始化哈希表
-    mapp = dict[int, str]()
+    hmap = dict[int, str]()
 
     # 添加操作
     # 在哈希表中添加键值对 (key, value)
-    mapp[12836] = "小哈"
-    mapp[15937] = "小啰"
-    mapp[16750] = "小算"
-    mapp[13276] = "小法"
-    mapp[10583] = "小鸭"
+    hmap[12836] = "小哈"
+    hmap[15937] = "小啰"
+    hmap[16750] = "小算"
+    hmap[13276] = "小法"
+    hmap[10583] = "小鸭"
     print("\n添加完成后，哈希表为\nKey -> Value")
-    print_dict(mapp)
+    print_dict(hmap)
 
     # 查询操作
     # 向哈希表输入键 key ，得到值 value
-    name: str = mapp[15937]
+    name: str = hmap[15937]
     print("\n输入学号 15937 ，查询到姓名 " + name)
 
     # 删除操作
     # 在哈希表中删除键值对 (key, value)
-    mapp.pop(10583)
+    hmap.pop(10583)
     print("\n删除 10583 后，哈希表为\nKey -> Value")
-    print_dict(mapp)
+    print_dict(hmap)
 
     # 遍历哈希表
     print("\n遍历键值对 Key->Value")
-    for key, value in mapp.items():
+    for key, value in hmap.items():
         print(key, "->", value)
 
     print("\n单独遍历键 Key")
-    for key in mapp.keys():
+    for key in hmap.keys():
         print(key)
 
     print("\n单独遍历值 Value")
-    for val in mapp.values():
+    for val in hmap.values():
         print(val)

codes/python/chapter_searching/hashing_search.py

@@ -10,20 +10,20 @@ sys.path.append(osp.dirname(osp.dirname(osp.abspath(__file__))))
 from modules import *
 
 
-def hashing_search_array(mapp: dict[int, int], target: int) -> int:
+def hashing_search_array(hmap: dict[int, int], target: int) -> int:
     """哈希查找（数组）"""
     # 哈希表的 key: 目标元素，value: 索引
     # 若哈希表中无此 key ，返回 -1
-    return mapp.get(target, -1)
+    return hmap.get(target, -1)
 
 
 def hashing_search_linkedlist(
-    mapp: dict[int, ListNode], target: int
+    hmap: dict[int, ListNode], target: int
 ) -> ListNode | None:
     """哈希查找（链表）"""
     # 哈希表的 key: 目标元素，value: 节点对象
     # 若哈希表中无此 key ，返回 None
-    return mapp.get(target, None)
+    return hmap.get(target, None)
 
 
 """Driver Code"""

codes/python/modules/print_util.py

@@ -67,9 +67,9 @@ def print_tree(
     print_tree(root.left, trunk, False)
 
 
-def print_dict(mapp: dict):
+def print_dict(hmap: dict):
     """Print a dict"""
-    for key, value in mapp.items():
+    for key, value in hmap.items():
         print(key, "->", value)