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(ns aocclj.day04
(:require [clojure.string :as str]))
(defn subinterval [a0 a1 b0 b1]
(and (<= a0 b0) (>= a1 b1)))
(defn subcontained [a0 a1 b0 b1]
(or (subinterval a0 a1 b0 b1)
(subinterval b0 b1 a0 a1)))
(defn overlap [a0 a1 b0 b1]
"Test if [b0;b1] overlaps [a0;a1]"
(and (<= a0 b1) (<= b0 a1)))
(defn solver [func input]
(transduce
(comp
(map #(str/split % #"[,-]"))
(map (partial map parse-long))
(map #(apply func %))
(map #(if (true? %) 1 0)))
+
input))
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