Nested List Weight Sum

linkedin Given a nested integer list, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- the list elements may also be integers or other lists. Instead of the regular weighted sum, I suppose to give integers located in deeper level more weight than those on the shallow level. Input A nested integer list nestedList. Elements could be either an integer or list. Output The weighted sum of all integers. Example Input: nestedList = [[1,1],2,[1,1]] Output: 10 Explanation: Four 1s at weight 2, each 2 * 1 + 2 = 10 Input: nestedList = [1,[4,[6]]] Output: 17 Explanation: 1 at weight 3, 4 at 2, and 6 at 1, 1 * 3 + 4 * 2 + 6 * 1 = 17 Example Input [[1,1],2,[1,1]]