Advent-of-code day1 2021

advent-day1-clojure.clj

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

;; (def input [1, 2, 3, 4, 5, 7, 1, 9, 10])
(def input (map #(Integer/parseInt %) (str/split-lines (slurp "input-data.txt"))))

(take 3 input)

(def combined-input (loop [input-nums input
                           values-to-check []]
                      (if (= (count input-nums) 2)
                        values-to-check
                        (let [combined-vals (reduce + (take 3 input-nums))]
                          (recur (rest input-nums) (conj values-to-check combined-vals))))))


(defn check-depths [input-depths]
  (loop [input-nums input-depths
         counter 0]
    (if (= (count input-nums) 1)
      counter
      (let [first-val (first input-nums)
            second-val (second input-nums)
            next-counter (if (> second-val first-val) (inc counter) counter)]
        (recur (rest input-nums) next-counter)))))

(check-depths combined-input)

advent-day1-javascript.js

const fs = require('fs')
// const input = [1, 2, 3, 4, 5, 7, 1, 9, 10]
// const input = [ [1, 2, 3], [2, 3, 4] , [3, 4, 5]]

fs.readFile('input-data.txt', 'utf-8', (err, data) => {
  const input = data.split('\n').map((x) => Number(x))
  const valuesToCheck = []
  let counter = 0
  for (let i = 0; i < input.length; i++) {
    valuesToCheck.push(input.slice(i, i + 3).reduce((acc, v) => acc + v, 0))
  }
  for (let i = 0; i < valuesToCheck.length; i++) {
    const firstVal = valuesToCheck[i]
    const secondVal = valuesToCheck[i + 1]
    if (secondVal > firstVal) {
      ++counter
    }
  }
  console.log('Counter=', counter)
})