Created
May 20, 2020 00:11
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Hourglass Sum Hacker Rank
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| 'use strict'; | |
| const fs = require('fs'); | |
| process.stdin.resume(); | |
| process.stdin.setEncoding('utf-8'); | |
| let inputString = ''; | |
| let currentLine = 0; | |
| process.stdin.on('data', inputStdin => { | |
| inputString += inputStdin; | |
| }); | |
| process.stdin.on('end', _ => { | |
| inputString = inputString.replace(/\s*$/, '') | |
| .split('\n') | |
| .map(str => str.replace(/\s*$/, '')); | |
| main(); | |
| }); | |
| function readLine() { | |
| return inputString[currentLine++]; | |
| } | |
| // Complete the hourglassSum function below. | |
| function hourglassSum(arr) { | |
| const n = arr.length; | |
| let max = 0; | |
| for (let i = 0; i < n - 2; i++) { | |
| const sn = arr[i].length; | |
| for (let j = 0; j < sn - 2; j++) { | |
| if (i + 2 < n && j + 2 < sn) { | |
| const sum = arr[i][j] + arr[i][j + 1] + arr[i][j + 2] + arr[i + 1][j + 1] + arr[i + 2][j] + arr[i + 2][j + 1] + arr[i + 2][j + 2]; | |
| max = max <= sum || (max === 0 && i === 0) ? sum : max; | |
| } | |
| } | |
| } | |
| return max; | |
| } | |
| function main() { | |
| const ws = fs.createWriteStream(process.env.OUTPUT_PATH); | |
| let arr = Array(6); | |
| for (let i = 0; i < 6; i++) { | |
| arr[i] = readLine().split(' ').map(arrTemp => parseInt(arrTemp, 10)); | |
| } | |
| let result = hourglassSum(arr); | |
| ws.write(result + "\n"); | |
| ws.end(); | |
| } |
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