<reponame>KartikKannapur/Data_Structures_and_Algorithms_Python
"""
Given a nested list of integers, return the sum of all integers in the list weighted by their depth.
Each element is either an integer, or a list -- whose elements may also be integers or other lists.
Example 1:
Given the list [[1,1],2,[1,1]], return 10. (four 1's at depth 2, one 2 at depth 1)
Example 2:
Given the list [1,[4,[6]]], return 27. (one 1 at depth 1, one 4 at depth 2, and one 6 at depth 3; 1 + 4*2 + 6*3 = 27)
"""

def findSum(arr, depth):
    summer = 0
    for ele in arr:
        if type(ele) == list:
            summer += findSum(ele, depth+1)
        else:
            summer += ele*depth
    return summer

print(findSum([1,2,3,[5, [3,2]]],1))

"""
Given a nested list of integers, return the sum of all integers in the list weighted by their depth.
Each element is either an integer, or a list -- whose elements may also be integers or other lists.
Example 1:
Given the list [[1,1],2,[1,1]], return 10. (four 1's at depth 2, one 2 at depth 1)
Example 2:
Given the list [1,[4,[6]]], return 27. (one 1 at depth 1, one 4 at depth 2, and one 6 at depth 3; 1 + 4*2 + 6*3 = 27)
"""

def findSum(arr, depth):
    summer = 0
    for ele in arr:
        if type(ele) == list:
            summer += findSum(ele, depth+1)
        else:
            summer += ele*depth
    return summer

print(findSum([1,2,3,[5, [3,2]]],1))
Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1: Given the list [[1,1],2,[1,1]], return 10. (four 1's at depth 2, one 2 at depth 1) Example 2: Given the list [1,[4,[6]]], return 27. (one 1 at depth 1, one 4 at depth 2, and one 6 at depth 3; 1 + 4*2 + 6*3 = 27)