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-; Day 2, part 1
-; Read a list of instructions from stdin:
-; "down X" increases depth number by X,
-; "up X" decreases depth by X,
-; "forward X" increases xpos by X.
-; Print (xpos * depth) after end of data.
-;
-
-(require '[clojure.string :as str])
-
-(println
- (reduce *
- (vals
- (reduce
- #(case (first %2)
- "forward" (update %1 :xpos + (second %2))
- "up" (update %1 :depth - (second %2))
- "down" (update %1 :depth + (second %2))
- )
- {:xpos 0 :depth 0}
- (->> (slurp "./in")
- str/split-lines
- (map #(str/split % #" "))
- (map #(update % 1 read-string))
- )))))
-