BubbleSort.js

'use strict';

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 countSwaps function below.
function countSwaps(a) {
    let count = 0;

    for (let i = 0; i < a.length; i++) {
        for (let j = 0; j < (a.length)- 1; j++) {
            if (a[j] > a[j + 1]) {;
                [a[j], a[j + 1]] = [a[j + 1], a[j]] ;
                count++;
            }
        }
    }

    console.log(`Array is sorted in ${count} swaps.`);
    console.log(`First Element: ${a[0]}`);
    console.log(`Last Element: ${a[a.length - 1]}`);



}

function main() {
    const n = parseInt(readLine(), 10);

    const a = readLine().split(' ').map(aTemp => parseInt(aTemp, 10));

    countSwaps(a);
}