MarkAndToys.js

'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 maximumToys function below.
function maximumToys(prices, k) {
      let total = 0;
    let toys = [];
    let sortedPrices = prices.sort((a, b) => a - b);

    for (let p of sortedPrices) {
        if (total + p <= k) {
            toys.push(p);
            total += p;
        } else {
            return toys.length;
        }
    }


}

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);

    const prices = readLine().split(' ').map(pricesTemp => parseInt(pricesTemp, 10));

    let result = maximumToys(prices, k);

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

    ws.end();
}