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- Ruby
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- Haskell
- Python
- Java
- Clojure
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- C++
- PHP
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- F#
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- Rust
- Swift
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- R (Beta)
- Shell
- OCaml (Beta)
- Kotlin
- Elixir
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- Scala
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- Racket
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- D (Beta)
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- NASM
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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.