hello-algo/en/codes/python/chapter_hashing/hash_map.py
Yudong Jin 1c0f350ad6
translation: Add Python and Java code for EN version (#1345)
* Add the intial translation of code of all the languages

* test

* revert

* Remove

* Add Python and Java code for EN version
2024-05-06 05:21:51 +08:00

50 lines
1.2 KiB
Python

"""
File: hash_map.py
Created Time: 2022-12-14
Author: msk397 (machangxinq@gmail.com)
"""
import sys
from pathlib import Path
sys.path.append(str(Path(__file__).parent.parent))
from modules import print_dict
"""Driver Code"""
if __name__ == "__main__":
# Initialize hash table
hmap = dict[int, str]()
# Add operation
# Add key-value pair (key, value) to the hash table
hmap[12836] = "Ha"
hmap[15937] = "Luo"
hmap[16750] = "Suan"
hmap[13276] = "Fa"
hmap[10583] = "Ya"
print("\nAfter adding, the hash table is\nKey -> Value")
print_dict(hmap)
# Query operation
# Enter key to the hash table, get value
name: str = hmap[15937]
print("\nEnter student ID 15937, found name " + name)
# Remove operation
# Remove key-value pair (key, value) from the hash table
hmap.pop(10583)
print("\nAfter removing 10583, the hash table is\nKey -> Value")
print_dict(hmap)
# Traverse hash table
print("\nTraverse key-value pairs Key->Value")
for key, value in hmap.items():
print(key, "->", value)
print("\nIndividually traverse keys Key")
for key in hmap.keys():
print(key)
print("\nIndividually traverse values Value")
for val in hmap.values():
print(val)