Definition
-Partition Problem The
-partition problem is a decision problem that asks whether a multiset of positive integers can be divided into parts with equal sum. Instance: a multiset
of positive integers and a positive integer .
Question: does there exist a partitionof such that
Target sum
If such a partition exists, each part has sum
Hence the instance is immediately infeasible if
Special cases
The 3-partition problem is a constrained form in which