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* Update avatar's link in the landing page * Bug fixes * Move assets folder from overrides to docs * Reduce figures' corner radius * Update copyright * Update header image * Krahets -> krahets * Update the landing page
59 lines
1.1 KiB
Python
59 lines
1.1 KiB
Python
"""
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File: simple_hash.py
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Created Time: 2023-06-15
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Author: krahets (krahets@163.com)
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"""
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def add_hash(key: str) -> int:
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"""加法哈希"""
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hash = 0
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modulus = 1000000007
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for c in key:
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hash += ord(c)
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return hash % modulus
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def mul_hash(key: str) -> int:
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"""乘法哈希"""
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hash = 0
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modulus = 1000000007
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for c in key:
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hash = 31 * hash + ord(c)
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return hash % modulus
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def xor_hash(key: str) -> int:
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"""异或哈希"""
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hash = 0
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modulus = 1000000007
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for c in key:
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hash ^= ord(c)
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return hash % modulus
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def rot_hash(key: str) -> int:
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"""旋转哈希"""
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hash = 0
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modulus = 1000000007
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for c in key:
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hash = (hash << 4) ^ (hash >> 28) ^ ord(c)
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return hash % modulus
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"""Driver Code"""
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if __name__ == "__main__":
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key = "Hello 算法"
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hash = add_hash(key)
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print(f"加法哈希值为 {hash}")
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hash = mul_hash(key)
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print(f"乘法哈希值为 {hash}")
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hash = xor_hash(key)
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print(f"异或哈希值为 {hash}")
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hash = rot_hash(key)
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print(f"旋转哈希值为 {hash}")
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