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1 vote
1 answer
331 views

InternedString as alternative to regular String

I need to use large strings as a dictionary keys, and I want to optimize the repetitive GetHashCode() and Equals() calls in it. ...
astef's user avatar
  • 217
5 votes
4 answers
2k views

Fast case-insensitive hash-code for specific codes

I'm trying to fix another bottleneck identified with a profiler (dotTrace). This time it's a case insensitive hash-code. Currently I'm using the ...
t3chb0t's user avatar
  • 44.6k
2 votes
2 answers
2k views

Leetcode 49: Group Anagrams - Hash function design talk

problem statement Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], ...
Jianmin Chen's user avatar
  • 2,456
2 votes
1 answer
397 views

Minimal length of substring that forms cyclic string

There is a known problem stated as "Cyclic string": A string S has been recorded many times, and then from the resulting line took a substring, and give to you.Your task is to determine the ...
Alexander Myltsev's user avatar
3 votes
4 answers
2k views

Optimizing Java SHA-512 String-to-Hash Generator

In an attempt to learn Java and SHA-2 I created a very simple String-to-SHA512 generator. Here is the code: ...
Anonymous's user avatar
11 votes
2 answers
3k views

One-way hash using ASCII

Assume the built-in function Ascii(c), where c is a one character string, will return an integer containing the ASCII value of ...
david's user avatar
  • 171
3 votes
1 answer
8k views

Hash function for strings

Implementation of a hash function in java, haven't got round to dealing with collisions yet. I tried to use good code, refactored, descriptive variable names, nice syntax. My code must be efficient ...
par's user avatar
  • 133
3 votes
3 answers
401 views

A hash-signature-type which tests on comparing against normal strings

I decided to throw this together today figuring it would be cool to add to my repertoire. Before we always had performed this "task" externally. Find the value we want to compare, hash it and compare ...
David Carrigan's user avatar
2 votes
2 answers
408 views

Computing hash of string

I want my code to be reviewed and I'd like to hear your opinions. Sun's code to compute hash of string: ...
JavaDeveloper's user avatar