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- Haskell
- F#
- Python
- C
- C#
- JavaScript
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- Clojure
- Crystal
- Java
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- C++
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- Rust
- Julia (Beta)
- CoffeeScript
- R (Beta)
- Scala
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- BF (Beta)
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- Prolog (Beta)
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Start training on this collection. Each time you skip or complete a kata you will be taken to the next kata in the series. Once you cycle through the items in the collection you will revert back to your normal training routine.