julia implementation for problems 7 and 8

This commit is contained in:
ikselven 2017-08-08 23:04:26 +02:00
parent 447f5ebd77
commit 378aa735ec
2 changed files with 74 additions and 0 deletions

36
e0007/euler0007.jl Normal file
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#!/usr/bin/julia
function euler007(n)
if n < 1
return NaN
elseif n == 1
return 2
end
primes = Array{Int64, 1}([])
foundCount = 1
number = 3
while foundCount < n
isPrime = true
for prime primes
if number % prime == 0
isPrime = false
break
end
end
if isPrime
push!(primes, number)
foundCount += 1
end
number += 2
end
return last(primes)
end
euler007(1)
@time euler007(10001)

38
e0008/euler0008.jl Normal file
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#!/usr/bin/julia
function euler008(longnumber, slicelength=12)
currentMaxProd = 0
for i 1:(length(longnumber)-slicelength)
number = parse(Int, longnumber[i:(i+slicelength)])
digitsProd = prod(digits(number))
if digitsProd > currentMaxProd
currentMaxProd = digitsProd
end
end
currentMaxProd
end
euler008("1", 1)
@time euler008("73167176531330624919225119674426574742355349194934" *
"96983520312774506326239578318016984801869478851843" *
"85861560789112949495459501737958331952853208805511" *
"12540698747158523863050715693290963295227443043557" *
"66896648950445244523161731856403098711121722383113" *
"62229893423380308135336276614282806444486645238749" *
"30358907296290491560440772390713810515859307960866" *
"70172427121883998797908792274921901699720888093776" *
"65727333001053367881220235421809751254540594752243" *
"52584907711670556013604839586446706324415722155397" *
"53697817977846174064955149290862569321978468622482" *
"83972241375657056057490261407972968652414535100474" *
"82166370484403199890008895243450658541227588666881" *
"16427171479924442928230863465674813919123162824586" *
"17866458359124566529476545682848912883142607690042" *
"24219022671055626321111109370544217506941658960408" *
"07198403850962455444362981230987879927244284909188" *
"84580156166097919133875499200524063689912560717606" *
"05886116467109405077541002256983155200055935729725" *
"71636269561882670428252483600823257530420752963450")