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Reduce allocations and refactoring

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David Doblas Jiménez 2022-10-12 21:07:52 +02:00
parent 4bac47687b
commit bc5bd80a58
1 changed files with 9 additions and 3 deletions
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12
src/Julia/Problems001-050/Problem016.jl
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@ -1,4 +1,4 @@
using Base:Integer using Base: Integer
#= #=
Created on 26 Jul 2021 Created on 26 Jul 2021
@ -10,13 +10,19 @@ https://projecteuler.net/problem=16 =#
using BenchmarkTools using BenchmarkTools
# function pow(n)
# return 2^BigInt(n)
# end
function Problem16() function Problem16()
#= #=
2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26. 2^15 = 32768 and the sum of its digits is 3 + 2 + 7 + 6 + 8 = 26.
What is the sum of the digits of the number 2^1000? =# What is the sum of the digits of the number 2^1000? =#
n = 1000
return sum(parse(Int, d) for d in string(2^BigInt(n))) n::Int16 = 1_000
return sum(digits(2^BigInt(n)))
end end