JuliaCollections / JuliaCollections/DataStructures.jl
DisjointSets: set sizes
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- Dominant language
- Julia
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- 745
- Forks
- 261
- PR merge metrics
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Description
I noticed that DisjointSets doesn't store set sizes. I wanted to use DisjointSets for an algorithm where I need to quickly find an element's set size. Is set size not stored since users don't usually need this feature and an user can separately store set sizes and update them during set merge operations?
Just to make it clear, I am looking for a function find_set_size(a, n) which returns n's set size in DisjointSets a. I would be happy to send a pull request.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by locating the DisjointSets implementation and its set-merge operations. Determine how a find_set_size(a, n) function should expose the size of n's set, then verify that it returns correct sizes after sets are merged.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data
- Issue type
- Feature
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100