I want to generate n pairs of integers {(x_i, y_i)}, such that x_i + y_i <= k. One way I can think of is to generate one pair at a time
pairs = zeros(n,2)for i=1:n pairs(i,1) = randi(0,k); pairs(i,2) = randi(0,k - pairs(i,1));end
But, certainly, for loop is not favorable in matlab. Also, I'm not sure if that guarantees randomness either. I wonder if there's any existing function or a better way to do that?
Variation: consider a constraint that we want m% of generated pairs have pairwise_sum <= h ( h is some number < k). My approach won't work in this case. I'd love to get some hints to solve that as well.
Many thanks,
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