minimum-absolute-difference-in-an-array.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', function () {
    inputString = inputString.replace(/\s*$/, '')
        .split('\n')
        .map(str => str.replace(/\s*$/, ''));

    main();
});

function readLine() {
    return inputString[currentLine++];
}

// Complete the minimumAbsoluteDifference function below.
function minimumAbsoluteDifference(arr) {
    arr = arr.sort((x, y) => x - y);
    var min = Number.MAX_VALUE;
    for (var i = 1; i < arr.length; i++) {
        if (min > Math.abs(arr[i-1] - arr[i])) {
            min = Math.abs(arr[i-1] - arr[i]);
        }
    }
    return min;

}

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

    const n = parseInt(readLine(), 10);

    const arr = readLine().split(' ').map(arrTemp => parseInt(arrTemp, 10));

    const result = minimumAbsoluteDifference(arr);

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

    ws.end();
}