Problem 105 of Project Euler is closely related to Problem 103 as has been mentioned in both problem descriptions. The problem formulation for this problem isidentify all the special sum sets, A1, A2, ..., Ak, and find the value of S(A1) + S(A2) + ... + S(Ak).To be completly honest, I haven't gotten all that many new insights from solving this problem compared to Problem 103. What we need here is