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substract 2 vectors in clojure
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| (defn minus [v1 v2] | |
| "substract 2 vectors, v2 must be a subset of v1" | |
| (reduce (fn [acc v] | |
| (let [index (.indexOf acc v)] | |
| (into (subvec acc 0 index) (subvec acc (inc index))))) v1 v2)) | |
| (minus [:c :a :b :b :a :a :b] [:a :a :b :a]) ; [:c :b :b] |
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