Problem 2799. Multiply Column
Given two input, one matrix and one scalar number
For example
A is a matrix given
A = [ 1 2 2 5 2 5 2 3 4 6 4 6 3 4 6 1 5 7 ]
and n=2. The columns of A divide two groups first
and second column multiply each other and then
third and forth column multiply, and so on.
The result will be
Result = [ 2 10 10 6 24 24 12 6 35 ]
When n=3, the columns of A divide three groups
first and second third column multiply each other,
and so on.
Result = [ 4 50 24 144 72 35]
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