htree | Package htree implements the in-memory hash tree | Hashing library
kandi X-RAY | htree Summary
kandi X-RAY | htree Summary
Package htree implements the in-memory hash tree.
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Top functions reviewed by kandi - BETA
- Next moves the iterator to next and moves it to the next one .
- Generates usage of the memory .
- newNode returns a new node tree .
- modulo returns the modulo of key .
- New creates a new HTree .
htree Key Features
htree Examples and Code Snippets
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Trending Discussions on htree
QUESTION
I see that some programming languages use "@" in comments. For example, here is a random program in the Linux kernel: https://elixir.bootlin.com/linux/v5.10.11/source/fs/ext4/dir.c#L37
...ANSWER
Answered 2021-Jan-30 at 07:07This is just a convention of the documentation tool, it's nothing to do with C. You can see the same sorts of comments in Ruby and Java, though I'm sure there's others that take inspiration from the same source.
If this isn't just a habit of the programmer it's to emit documentation automatically and explain the purpose of arguments. For whatever reason, @ was chosen as the "argument identifier" prefix.
QUESTION
I'm trying to learn Haskell. I am trying to implement a Huffman Tree. The parameters of my decode function are (basically, the 'signature'):
...ANSWER
Answered 2020-Feb-12 at 00:55Just write a recursive helper function that has access to the original tree:
QUESTION
I'm trying to learn Haskell, but find it really difficult, and there aren't a lot of online resources. I seem to have some major lack of understanding of how the recursive calls are supposed to look, and would appreciate being pointed in the right direction. I'm trying to take in a tree and return every leaf node with the symbol stored there, as well as the path taken to get there. (So the input (Fork (Leaf x) (Leaf y)) would have the output [(x,[False]) ,(y,[True])] ). My code looks like this:
...ANSWER
Answered 2019-Oct-24 at 03:49Consider the Fork. It has two subtrees, and each of those subtrees has some encoding.
Let's say that the left subtree encoding is:
QUESTION
I have found this Literate Haskell snippet implementing Huffman coding, but I don't understand how to use it. Some functions make sense to me—for example, I can write:
...ANSWER
Answered 2019-May-31 at 01:33The answer you looking for is
QUESTION
I'm trying to build a huffman tree using the algorithm and I've reached a dead end of some sorts. I first took the string as user input, and then found the actual bit representation of the input to compare with the compressed bit sequence. I then used std::map to map the letters to their frequencies. Now what i'm trying to do is, get a reverse iterator and insert the key-value as a node in a huffman tree. But I'm having a huge list of errors for the iterator part.
...ANSWER
Answered 2019-Mar-18 at 07:31here is the code that makes the error:
QUESTION
I require comparison between two Htrees and to do so i implemented my own comparison function which i use together with sortBy, however i want to implement a derived instance of the Eq and Ord classes but the amount of cases needed to cover all possible combinations makes it impractical.
...ANSWER
Answered 2019-Feb-12 at 15:33To do what you want, first write a more general version (that is, a polymorphic version) of getWeight, which only requires rewriting the type signature:
QUESTION
I am attempting to implement huffman coding in haskell and use the following two data structures:
...ANSWER
Answered 2019-Feb-08 at 21:39You could make this task simpler for yourself by using only a single data type, and parameterizing it by the type of data you wish to store at each node:
QUESTION
I'm trying to sort HashMap's output using LinkedHashMapand TreeMap.
When I use TreeMap to sort out HashMap it works like a charm.
ANSWER
Answered 2018-Sep-20 at 07:53HashMap doesn't keep the sort for the keys. What's more, note that it's not guarded that an HashMap instance shows the (k-v) sequences identically when it's size changes due to the load factor.
The "sort" means for LinkedHashMap is not about the sort by key value comparison. Instead, it means the insert order or the access order.
insert order <2,"A">, <1,"B"> ,<3,"C">
iterate order as insert order: <2,"A">, <1,"B"> ,<3,"C">
Then assume that implementing operation of accessing(get/put) <1,"B"> iterate order as access order: <2,"A">, <3,"C">,<1,"B">
QUESTION
so this is kinda a long question about Huffman Tress. I am trying to make a Tree and a code Table.
Here are my Types
...ANSWER
Answered 2018-Aug-15 at 18:37Expected type: Value
Actual type: Number
QUESTION
I'm rewriting the Huffman coding algorithm as a Haskell rookie exercise and I'm struggling a bit reforming the tree I serialized using the following technique:
- Walk the tree from root in depth-first preorder
- Encounter a Node put 0 followed by recurse on left then right childs
- Encounter a Leaf put 1 followed by the symbol byte
My serialization code:
...ANSWER
Answered 2018-Apr-21 at 13:45You need to write a parser, using a type suitable for recursion.
At the top level you indeed want [Bit] -> HTree a (probably restricting a to some type class, but I'll neglect this). However, for enabling recursion you need
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