Would you care to elaborate? I admit that I only picked up the "NP complete" that Skeeve mentioned earlier.

On thinking a bit more it seems that the problem is roughly equivalent with calculating the sum of each item of the power set, which is O(2**N), and I see no obvious way to reduce that to O(N**3).

In reply to Re^5: Divide array of integers into most similar value halves by moritz
in thread Divide array of integers into most similar value halves by Pepe

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