marc's cakewalk hacker rank solution javascript

Please refer this link for the problem statement click here

Javascript program for marc's cakewalk hackerrank solution

function marcsCakewalk(calorie) {

    let result = 0;

    calorie.sort((a, b) => b - a);

    for (let i = 0; i < calorie.length; i++) {

        result += (2 ** i) * calorie[i];

    }

    return result;

}

Time Complexity : O(nlogn)

Space Complexity : O(1)