Linting
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@ -1,4 +1,4 @@
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using Base:String
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using Base: String
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#=
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#=
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Created on 22 Jul 2021
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Created on 22 Jul 2021
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@ -15,6 +15,7 @@ function Problem13()
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#=
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#=
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Work out the first ten digits of the sum of the following one-hundred
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Work out the first ten digits of the sum of the following one-hundred
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50-digit numbers =#
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50-digit numbers =#
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return string(sum(parse.(BigInt, readlines("../files/Problem13.txt"))))[1:10]
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return string(sum(parse.(BigInt, readlines("../files/Problem13.txt"))))[1:10]
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end
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end
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@ -9,13 +9,13 @@ https://projecteuler.net/problem=14 =#
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using BenchmarkTools
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using BenchmarkTools
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function chain_length(n)# , terms)
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function chain_length(n)
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length = 0
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length = 0
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while n > 1
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while n > 1
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n = iseven(n) ? n >> 1 : 3n + 1
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n = iseven(n) ? n >> 1 : 3n + 1
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length += 1
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length += 1
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end
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end
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return length
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return length
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end
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end
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function Problem14()
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function Problem14()
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@ -42,13 +42,13 @@ function Problem14()
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ans = 0
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ans = 0
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limit = 1_000_000
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limit = 1_000_000
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score = 0
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score = 0
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for i in 1:2:limit # no need to check even numbers
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for i = 1:2:limit # no need to check even numbers
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longest = chain_length(i)
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longest = chain_length(i)
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if longest > score
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if longest > score
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score = longest
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score = longest
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ans = i
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ans = i
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end
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end
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end
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end
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return ans
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return ans
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end
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end
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