Google Solar Doomsday

doomsday.js

function sum(arr) {
    return arr.reduce((sum, n) => sum + n, 0);
}

function answer(initArea) {
    var list = [];

    var area = initArea;

    var i = 1;

    while (sum(list) < initArea) {
        if ((i + 1) ** 2 >= area) {
            list.push(i ** 2);

            area -= i ** 2
            i = 1
        }
        else {
            i += 1
        }
    }

    return list;

}

console.log(answer(12), [9, 1, 1, 1])
console.log(answer(15324), [15129, 169, 25, 1])