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April 21, 2021 15:16
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| "use strict" | |
| const fs = require("fs"); | |
| const assert = require("assert"); | |
| const inputValues = [] | |
| //get all values from the file input; | |
| fs.readFileSync("input.txt", "utf-8") | |
| .split('\n\n') | |
| .forEach((line) => { | |
| inputValues.push(line.trim().split('\n')) | |
| }); | |
| const uniqueValue = (x) => { | |
| // console.log('filter') | |
| return [...x].filter((value, index, self) => self.indexOf(value) === index); | |
| } | |
| // get all unique question in each group | |
| const getUniqueValues = (group) => { | |
| //convert nested array to string | |
| const a = [...group.flat()].join(""); | |
| let unique = uniqueValue(a) | |
| return unique.length; | |
| }; | |
| const sumOfYesCount = (input) => { | |
| const sum = []; | |
| input.forEach((element) => { | |
| const x = getUniqueValues(element); | |
| sum.push(x); | |
| }); | |
| return sum.reduce((a, b) => a + b); | |
| }; | |
| const NumberOfQtnGotYes = (input) => { | |
| const yesSum = [] | |
| // for Each of the input find the unique value by comparing each answer | |
| input.forEach(group => { | |
| if (group.length === 1) { | |
| //if its only one group | |
| yesSum.push(uniqueValue(group[0]).length); | |
| } else { | |
| let all = []; | |
| uniqueValue(group).forEach(qtn => { | |
| [...qtn].forEach(answer => { | |
| //get a long string of word and if each answer is present in all | |
| let t = group.flat().join("") | |
| let w = [...t].filter(g => { | |
| if (g === answer) return answer | |
| }) | |
| if (w.length === group.length) all.push(w) | |
| }) | |
| }) | |
| const c = uniqueValue(all.flat()); | |
| yesSum.push(c.length) | |
| } | |
| }) | |
| return yesSum.reduce((e, a) => e + a) | |
| } | |
| console.log("sum of yes count => ", sumOfYesCount(inputValues)); | |
| console.log("answers where everyone said yes => ", NumberOfQtnGotYes(inputValues) ); | |
| /** | |
| * use your test cases here | |
| */ | |
| // try { | |
| // assert.deepStrictEqual(11, sumOfYesCount(inputValues)) | |
| // assert.deepStrictEqual(6, NumberOfQtnGotYes(inputValues)) | |
| // console.log('passed assertion test 👍 👍 👍 ') | |
| // } catch (error) { | |
| // console.log('failed assertion test 😒') | |
| // } |
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