char[] elementArray = new char[] { 'A', 'B', 'C', 'D' }; char[] mainArray = new char[3000]; Random random; for (int i = 0; i < 3000; i++) { int seed = (int)DateTime.Now.Ticks; random = new Random(seed); mainArray[i] = elementArray[random.Next(4)]; }
A B D A A C B C D A B B C A D A C C D A C D B B B B A C...
A C C C C C C C C C ... A A A A A A A ... D D D D D D ...
Random
var
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