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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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12
Task/Arithmetic-Rational/Ruby/arithmetic-rational.rb Normal file
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for candidate in 2 .. 2**19
sum = Rational(1, candidate)
for factor in 2 .. Integer.sqrt(candidate)
if candidate % factor == 0
sum += Rational(1, factor) + Rational(1, candidate / factor)
end
end
if sum.denominator == 1
puts "Sum of recipr. factors of %d = %d exactly %s" %
[candidate, sum.to_i, sum == 1 ? "perfect!" : ""]
end
end