Get the desired number of samples

I was wondering how to get n number of sample outputs constrained by the situations given.
AB > C^2
accept C
else reject C
however, I need n non zero final samples.

Wrote this one:
It works for me!

function Obj = get_random_v3(Obj, n)

% n=250

j=1;



v = zeros(1,n);



notOK3 =1;

while notOK3

Obj(j).v1 = rand();

Obj(j).v2 = rand();

Obj(j).v3 = rand();



if (Obj(j).v1*Obj(j).v2) > ((Obj(j).v3)^2)

v(j) = Obj(j).v3;

j=j+1;

end

v(v == 0) = [];

if (length(v) == n) %&& (length(v6) == n) && (length(v9) == n) && (length(v12) == n)

notOK3=~notOK3;

end

end