From a9242d68815278ce1f1edc85e33327eacfcee482 Mon Sep 17 00:00:00 2001 From: Casey Link Date: Fri, 9 Dec 2022 19:34:19 +0100 Subject: [PATCH 1/4] 2015 Day 01 --- resources/2015/day01.txt | 1 + src/aoc/2015/day01.clj | 28 ++++++++++++++++++++++++++++ test/aoc/2015/day01_test.clj | 14 ++++++++++++++ 3 files changed, 43 insertions(+) create mode 100644 resources/2015/day01.txt create mode 100644 src/aoc/2015/day01.clj create mode 100644 test/aoc/2015/day01_test.clj diff --git a/resources/2015/day01.txt b/resources/2015/day01.txt new file mode 100644 index 0000000..73e014e --- /dev/null +++ b/resources/2015/day01.txt @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/src/aoc/2015/day01.clj b/src/aoc/2015/day01.clj new file mode 100644 index 0000000..1cad070 --- /dev/null +++ b/src/aoc/2015/day01.clj @@ -0,0 +1,28 @@ +(ns aoc.2015.day01 + (:require + [aoc.core :as core :refer [read-input read-input-lines]] + [clojure.string :as str])) + +(def sample "(())") +(def input (read-input "2015/day01.txt")) + +(defn part-1 [input] + (->> + (str/split input #"") + (map #(if (= % "(") 1 -1)) + (reduce +))) + +(part-1 input) +;; => 232 + +(defn part-2 [input] + (->> + (str/split input #"") + (map #(if (= % "(") 1 -1)) + (reductions +) + (core/positions #{-1}) + first + inc)) + +(part-2 input) +;; => 1783 diff --git a/test/aoc/2015/day01_test.clj b/test/aoc/2015/day01_test.clj new file mode 100644 index 0000000..45b2eef --- /dev/null +++ b/test/aoc/2015/day01_test.clj @@ -0,0 +1,14 @@ +(ns aoc.2015.day01-test + (:require + [aoc.2015.day01 :as sut] + [clojure.test :refer :all])) + +(deftest challenges + (is (= 0 (sut/part-1 "(())"))) + (is (= 3 (sut/part-1 "((("))) + (is (= -3 (sut/part-1 ")())())"))) + (is (= 232 (sut/part-1 sut/input)))) + +(deftest part-2 + (is (= 5 (sut/part-2 "()())"))) + (is (= 1783 (sut/part-2 sut/input)))) From 103e384d060e5b1fa88ccd3c1d06e941509f97a0 Mon Sep 17 00:00:00 2001 From: Casey Link Date: Fri, 9 Dec 2022 19:52:48 +0100 Subject: [PATCH 2/4] 2015 Day 02 --- resources/2015/day02.txt | 1000 ++++++++++++++++++++++++++++++++++ src/aoc/2015/day02.clj | 45 ++ test/aoc/2015/day02_test.clj | 8 + 3 files changed, 1053 insertions(+) create mode 100644 resources/2015/day02.txt create mode 100644 src/aoc/2015/day02.clj create mode 100644 test/aoc/2015/day02_test.clj diff --git a/resources/2015/day02.txt b/resources/2015/day02.txt new file mode 100644 index 0000000..2f04474 --- /dev/null +++ b/resources/2015/day02.txt @@ -0,0 +1,1000 @@ +20x3x11 +15x27x5 +6x29x7 +30x15x9 +19x29x21 +10x4x15 +1x26x4 +1x5x18 +10x15x23 +10x14x20 +3x5x18 +29x23x30 +7x4x10 +22x24x29 +30x1x2 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+14x12x8 diff --git a/src/aoc/2015/day02.clj b/src/aoc/2015/day02.clj new file mode 100644 index 0000000..106db12 --- /dev/null +++ b/src/aoc/2015/day02.clj @@ -0,0 +1,45 @@ +(ns aoc.2015.day02 + (:require + [aoc.core :as core :refer [read-input read-input-lines]])) + +(def input (read-input-lines "2015/day02.txt")) +(def sample "2x3x4") + +(defn surface-area [[l w h]] + (+ (* 2 l w) + (* 2 w h) + (* 2 h l))) + +(defn smallest-side-area [[l w h]] + (min (* l w) (* l h) (* w h))) + +(defn paper-calc [dim] + (+ (surface-area dim) + (smallest-side-area dim))) + +(defn smallest-perimeter [[l w h]] + (min (+ (* 2 w) (* 2 l)) + (+ (* 2 w) (* 2 h)) + (+ (* 2 h) (* 2 l)))) + +(defn calc-ribbon [dim] + (+ (smallest-perimeter dim) + (reduce * dim))) + +(defn part-1 [input] + (->> + (map core/pull-ints input) + (map paper-calc) + (reduce +))) + +(part-1 input) +;; => 1606483 + +(defn part-2 [input] + (->> + (map core/pull-ints input) + (map calc-ribbon) + (reduce +))) + +(part-2 input) +;; => 3842356 diff --git a/test/aoc/2015/day02_test.clj b/test/aoc/2015/day02_test.clj new file mode 100644 index 0000000..073f05a --- /dev/null +++ b/test/aoc/2015/day02_test.clj @@ -0,0 +1,8 @@ +(ns aoc.2015.day02-test + (:require + [aoc.2015.day02 :as sut] + [clojure.test :refer :all])) + +(deftest challenges + (is (= 1606483 (sut/part-1 sut/input))) + (is (= 3842356 (sut/part-2 sut/input)))) From a44a7bf584a1b2dfd1137e8812f377defcac8b7d Mon Sep 17 00:00:00 2001 From: Casey Link Date: Fri, 9 Dec 2022 20:30:52 +0100 Subject: [PATCH 3/4] 2015 Day 03 --- resources/2015/day03.txt | 1 + src/aoc/2015/day03.clj | 41 ++++++++++++++++++++++++++++++++++++ test/aoc/2015/day03_test.clj | 8 +++++++ 3 files changed, 50 insertions(+) create mode 100644 resources/2015/day03.txt create mode 100644 src/aoc/2015/day03.clj create mode 100644 test/aoc/2015/day03_test.clj diff --git a/resources/2015/day03.txt b/resources/2015/day03.txt new file mode 100644 index 0000000..a5954e7 --- /dev/null +++ b/resources/2015/day03.txt @@ -0,0 +1 @@ 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\ No newline at end of file diff --git a/src/aoc/2015/day03.clj b/src/aoc/2015/day03.clj new file mode 100644 index 0000000..67e4e53 --- /dev/null +++ b/src/aoc/2015/day03.clj @@ -0,0 +1,41 @@ +(ns aoc.2015.day03 + (:require + [aoc.grid :as grid] + [aoc.core :as core :refer [read-input read-input-lines]] + [clojure.set :as set])) + +(def input (read-input "2015/day03.txt")) + +(def directions {\^ :north \v :south \> :east \< :west}) + +(defn part-1 [input] + (->> input + (map directions) + (map (fn [dir] [dir 1])) + (grid/step-moves) + (grid/walk [0 0]) + (set) + (count))) + +(defn part-2 [input] + (let [moves (->> input + (map directions) + (map (fn [dir] [dir 1]))) + ;; transpose + partition 2 gets us "every other" + [santa robo] (core/transpose (partition 2 moves))] + (count + (set/union + (->> santa + (grid/step-moves) + (grid/walk [0 0]) + (set)) + (->> robo + (grid/step-moves) + (grid/walk [0 0]) + (set)))))) + +(part-1 input) +;; => 2572 + +(part-2 input) +;; => 2631 diff --git a/test/aoc/2015/day03_test.clj b/test/aoc/2015/day03_test.clj new file mode 100644 index 0000000..d3d91fa --- /dev/null +++ b/test/aoc/2015/day03_test.clj @@ -0,0 +1,8 @@ +(ns aoc.2015.day03-test + (:require + [aoc.2015.day03 :as sut] + [clojure.test :refer :all])) + +(deftest challenges + (is (= 2572 (sut/part-1 sut/input))) + (is (= 2631 (sut/part-2 sut/input)))) From d6e4a23a69b11e2f84621d97786ebc0c778151f7 Mon Sep 17 00:00:00 2001 From: Casey Link Date: Fri, 9 Dec 2022 20:47:17 +0100 Subject: [PATCH 4/4] 2015 Day 04 --- resources/2015/day04.txt | 1 + src/aoc/2015/day04.clj | 29 +++++++++++++++++++++++++++++ test/aoc/2015/day04_test.clj | 10 ++++++++++ 3 files changed, 40 insertions(+) create mode 100644 resources/2015/day04.txt create mode 100644 src/aoc/2015/day04.clj create mode 100644 test/aoc/2015/day04_test.clj diff --git a/resources/2015/day04.txt b/resources/2015/day04.txt new file mode 100644 index 0000000..0f84c61 --- /dev/null +++ b/resources/2015/day04.txt @@ -0,0 +1 @@ +iwrupvqb diff --git a/src/aoc/2015/day04.clj b/src/aoc/2015/day04.clj new file mode 100644 index 0000000..24d57f6 --- /dev/null +++ b/src/aoc/2015/day04.clj @@ -0,0 +1,29 @@ +(ns aoc.2015.day04 + (:import [java.security MessageDigest]) + (:require + [aoc.core :as core :refer [read-input read-input-lines]] + [medley.core :as m] + [clojure.string :as str])) + +(defn md5 [^String s] + (let [algorithm (MessageDigest/getInstance "MD5") + raw (.digest algorithm (.getBytes s))] + (format "%032x" (BigInteger. 1 raw)))) + +(defn solve [key n] + (let [prefix (repeat n \0)] + (m/find-first #(= prefix (take n (md5 (str key %)))) (range)))) + +(def input (read-input "2015/day04.txt")) + +(defn part-1 [input] + (solve (str/trim input) 5)) + +;; (part-1 input) +;; => 346386 + +(defn part-2 [input] + (solve (str/trim input) 6)) + +;; (part-2 input) +;; => 9958218 diff --git a/test/aoc/2015/day04_test.clj b/test/aoc/2015/day04_test.clj new file mode 100644 index 0000000..05e352f --- /dev/null +++ b/test/aoc/2015/day04_test.clj @@ -0,0 +1,10 @@ +(ns aoc.2015.day04-test + (:require + [aoc.2015.day04 :as sut] + [clojure.test :refer :all])) + +(def sample "abcdef") +(deftest challenges + (is (= 609043 (sut/part-1 sample))) + (is (= 346386 (sut/part-1 sut/input))) + (is (= 9958218 (sut/part-2 sut/input)))) pFad - Phonifier reborn

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