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gavinsykes/euler_problem_100.js

Created November 30, 2020 23:50
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euler_problem_100.js
const prob;
Where P(BB) = 1/2
P(BB) = (B/(B+R)) * ((B-1)/(B+R-1)) = 1/2
(B(B-1)) / ((B+R)(B+R-1)) = 1/2
2B(B-1) / (B+R)(B+R-1) = 1
2B(B-1) = (B+R)(B+R-1)
2B^2 - 2B = B^2 + BR - B + BR + R^2 - R
B^2 - B = 2BR + R^2 - R
B^2 - 2BR - B = R^2 - R
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