Exploring Pascal's triangle
This is an interesting problem. I like this problem.
I do not know how I solved this problem the first time because I cannot find my old code. I really want to know what I thought at that time. I guess it should be similar to what lzw75 did in the discussion thread.
This time, I read Knuth's book(TAOCP, vol 1). I got a better understanding of this problem. I also read hyperdex's explanation of the problem. It is really interesting!
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