arrays - Partial sum lookup / partial sum set assignment -


i have following problem solve. as input have 2 decimal arrays. sum of elements of both of them equal. actuall problem assign values 1 array second 1 partial sums - if element 1 array sum of number of elements second array - should assigned each other.

sample1:

array1: 25.0, 25.0, 50.0, 50.0 array2: 50.0, 100.0

expected result: 50.0 sum of 25.0 , 25.0, 100.0 sum of 50.0 , 50.0
(0->0,1; 1->2,3)

sample2:

array1: 20.0, 70.0, 80.0, 130.0 array2: 100.0, 200.0

expected result: 100 = 20+80, 200 = 70+130 (0->0,2; 1->1,3)

idea return assigned array element indexes , return less assingments possible.

this called subset sum problem.

unfortunately np-complete, meaning have check possible combinations.

however, if problem has small quantity of partial sums (such examples) brute force away.

moron correct, not np-complete problem require checking possible combinations.
believe subset sum 1 does.


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