I want to prove the NP-hardness of my problem P in scheduling. I was trying with Partition, 3-Partition and Subset product, But neither was successful.
Now, I can reduce a problem, say PRODUCT-2-PARTITION to P, but I am not sure whether such problem is $NP$-complete or not?
The problem PRODUCT-2-PARTITION is as follows:
Given $n$ integers. Can we partition them into $n/2$ subsets, where each subset contains exactly $2$ integers, and the product of the elements of any subset is equal to a given value $B$?