Challenge: A Subarray with a Sum of 0

In this exercise, we will find a subarray whose sum turns out to be zero. Let's try it out!

Problem Statement #

You must implement the findSubZero(list) function which will take in an array of positive and negative integers. It will tell us if there exists a sublist in which the sum of all elements is zero. The term subarray implies that the elements whose sum is 0 must occur consecutively.

An array with these contents would return true:

[6, 4, -7, 3, 12, 9]

Whereas this would return false as the elements which sum up to be 0 do not appear together:

[-7, 4, 6, 3, 12, 9]

Input #

An array containing positive and negative integers.

Output #

Returns true if there exists a subarray with its sum equal to 0. Otherwise, the function returns false.

Sample Input #

var my_list = [6, 4, -7, 3, 12, 9}]

Sample Output #

true

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