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# Classic
## Simplest and popular
* 15.0g Coffee (one scoop, espresso grind)
* 10s Pour water 60.0g at 80.0°C 
* 21s Stir (fast)
* 16s Steep
* 15s Plunge

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(ns advent.a16
  (:require [clojure.string :as str]))


(def sue
  {:children 3
   :cats 7
   :samoyeds 2
   :pomeranians 3
   :akitas 0

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(ns advent.a15
  (:require
   [clojure.string :as str]
   [clojure.core.logic :as l :refer [run run* fresh]]
   [clojure.core.logic.fd :as fd]))

(def text "Sugar: capacity 3, durability 0, flavor 0, texture -3, calories 2
Sprinkles: capacity -3, durability 3, flavOr 0, texture 0, calories 9
Candy: capacity -1, durability 0, flavor 4, texture 0, calories 1
Chocolate: capacity 0, durability 0, flavor -2, texture 2, calories 8")

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(ns advent.a14
  (:require [clojure.string :as str]))

(def rules "Rudolph can fly 22 km/s for 8 seconds, but then must rest for 165 seconds.
Cupid can fly 8 km/s for 17 seconds, but then must rest for 114 seconds.
Prancer can fly 18 km/s for 6 seconds, but then must rest for 103 seconds.
Donner can fly 25 km/s for 6 seconds, but then must rest for 145 seconds.
Dasher can fly 11 km/s for 12 seconds, but then must rest for 125 seconds.
Comet can fly 21 km/s for 6 seconds, but then must rest for 121 seconds.
Blitzen can fly 18 km/s for 3 seconds, but then must rest for 50 seconds.

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(ns advent.a13
  (:require [clojure.string :as str]
            [clojure.math.combinatorics :refer [permutations]]))

(defn parse [l]
  (let [[_ subject sign value object]
        (re-find #"(\w+) would (gain|lose) (\d+) happiness units by sitting next to (\w+)." l)]
    [subject
     object
     (Integer/parseInt

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(ns advent.a10)

(defn look-and-say [ls]
  (flatten (for [l (partition-by identity ls)]
             [(count l) (first l)])))

(defn str->ints [s]
  (map #(Integer/parseInt (str %)) s))

(time

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(ns advent.a9
  (:require [clojure.string :as str]
            [clojure.math.combinatorics :refer [permutations]]))

(def text "AlphaCentauri to Snowdin = 66
AlphaCentauri to Tambi = 28
AlphaCentauri to Faerun = 60
AlphaCentauri to Norrath = 34
AlphaCentauri to Straylight = 34
AlphaCentauri to Tristram = 3

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(ns a6
  (:require [clojure.string :as str]))

(set! *warn-on-reflection* true)
(set! *unchecked-math* :warn-on-boxed)

(defn parse-int [s]
  (Integer/parseInt s))

(defn get-coords [^long n [^long sx ^long sy] [^long ex ^long ey]]

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(ns advent.a8
  (:require [clojure.string :as str]
            [instaparse.core :as insta]))

(def parser (insta/parser (slurp "a8.bnf")))

(def lines (str/split-lines (slurp "a8.txt")))

(defn nlits [l] (count (re-seq #"[^\s]" l)))

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(ns advent.a7
  (:require [clojure.string :as str]
            [instaparse.core :as insta]
            [clojure.core.match :refer [match]]))

(def MAX (int (dec (Math/pow 2 16))))

(defn unsign [i]
  (cond (< i 0) (+ MAX (inc i))
        (> i MAX) (- (dec i) MAX)