Hackerrank-JavaScript-Solutions/luck-balance.js at master · prabaprakash/Hackerrank-JavaScript-Solutions · GitHub

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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', function () {

inputString = inputString.replace(/\s*$/, '')

.split('\n')

.map(str => str.replace(/\s*$/, ''));

main();

});

function readLine() {

return inputString[currentLine++];

}

// Complete the luckBalance function below.

function luckBalance(k, contests) {

let sum = (x, y) => x + y;

let important_contests = contests.filter(x => x[1] === 1).map(x => x[0]).sort((x, y) => x - y);

let not_important_contests = contests.filter(x => x[1] === 0).map(x => x[0]).reduce(sum, 0);

let count = not_important_contests;

if (important_contests.length > k) {

let i = important_contests.length - k;

while (i--) {

count -= important_contests.shift();

}

count += important_contests.reduce(sum, 0)

return count;

}

function main() {

const ws = fs.createWriteStream(process.env.OUTPUT_PATH);

const nk = readLine().split(' ');

const n = parseInt(nk[0], 10);

const k = parseInt(nk[1], 10);

let contests = Array(n);

for (let i = 0; i < n; i++) {

contests[i] = readLine().split(' ').map(contestsTemp => parseInt(contestsTemp, 10));

}

const result = luckBalance(k, contests);

ws.write(result + '\n');

ws.end();

}

Hackerrank-JavaScript-Solutions/luck-balance.js at master · prabaprakash/Hackerrank-JavaScript-Solutions · GitHub

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