2028-find-missing-observations

DevGod

Vtuber

Caution

DevGod needs to write an editorial for this problem!

js

/**
 * @param {number[]} rolls
 * @param {number} mean
 * @param {number} n
 * @return {number[]}
 */

var missingRolls = function(rolls, mean, n) {
  const diff = mean * (rolls.length + n) - _.sumBy(rolls);
  if (diff < n) return [];
  if (diff > 6 * n) return [];
  return Array(n)
    .fill(Math.ceil(diff / n), 0, diff % n)
    .fill(Math.floor(diff / n), diff % n);
};