出典:Wikipedia
出典:『Wikipedia』 (2011/07/10 03:05 UTC 版)
In computer science, the subset sum problem is an important problem in complexity theory and cryptography. The problem is this: given a set of integers, is there a non-empty subset whose sum is zero? For example, given the set { −7, −3, −2, 5, 8}, the answer is yes because the subset { −3, −2, 5} sums to zero. The problem is NP-complete.