How to divide a set into two subsets such that difference between the sum of numbers in two sets is minimal?

Question

Given a set of numbers, divide the numbers into two subsets such that difference between the sum of numbers in two subsets is minimal.

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Answer 1

A possible solution here- https://stackoverflow.com/a/31228461/4955513 This Java program seems to solve this problem, provided one condition is fulfilled- that there is one and only one solution to the problem.