Fix a calculation sequence error. #510
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Why we have this:
This algorithm here directly follow the rule of ratio to win, and easier to understand. Just think about a smaller space, e.g. 100, instead of 2^256.
When one miner has 10% power, it should have 10% ratio to win. that is, when the h is in {0..9}, it wins. Simply speaking, it is:
(h + 1) / 100 <= 10% , instead of h / 99 < 10% (both are equivalent when h is an integer and power < 1),
but the former is easier to understand.
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I would like to propose another one, which might be better for this calculation. You could compare the two.