Update hashing_search.py
This commit is contained in:
parent
5b051fd48a
commit
255701db90
@ -1,10 +1,41 @@
|
||||
'''
|
||||
File: hashing_search.py
|
||||
Created Time: 2022-11-25
|
||||
Author: Krahets (krahets@163.com)
|
||||
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__))))
|
||||
from include import *
|
||||
|
||||
""" 哈希查找(数组) """
|
||||
def hashing_search(map,target):
|
||||
# 哈希表的 key: 目标元素,value: 索引
|
||||
# 若哈希表中无此 key ,返回 -1
|
||||
return map.get(target,-1)
|
||||
|
||||
""" 哈希查找(链表) """
|
||||
def hashing_search1(map,target):
|
||||
# 哈希表的 key: 目标元素,value: 节点对象
|
||||
# 若哈希表中无此 key ,返回 -1
|
||||
return map.get(target,-1)
|
||||
|
||||
if __name__=='__main__':
|
||||
target=3
|
||||
# 哈希查找(数组)
|
||||
nums=[1, 5, 3, 2, 4, 7, 5, 9, 10, 8]
|
||||
map=dict() # 初始化哈希表
|
||||
for i in range(len(nums)):
|
||||
map[nums[i]]=i # key: 元素,value: 索引
|
||||
index=hashing_search(map,target)
|
||||
print("目标元素 3 的索引 = " ,index)
|
||||
|
||||
# 哈希查找(链表)
|
||||
head=list_to_linked_list(nums)
|
||||
map1=dict() # 初始化哈希表
|
||||
while head:
|
||||
map1[head.val]=head # key: 结点值,value: 结点
|
||||
head=head.next
|
||||
|
||||
node=hashing_search1(map1,target)
|
||||
print("目标结点值 3 的对应结点对象为 " , node)
|
||||
|
Loading…
Reference in New Issue
Block a user