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chubbc/AoC2020_15.jl

Created December 16, 2020 01:58
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AoC2020_15.jl
N = [19,0,5,1,10,13];
function AoC2020_15(N::Vector{Int}, n::Int)::Int
D::Dict{Int,Int} = Dict{Int,Int}(reverse.(collect(enumerate(N))));
c::Int = 0;
for i ∈ length(N)+1:n-1
(D[c], c) = (i, i-get(D, c, i));
end
return c;
end
p1 = AoC2020_15(N,2020);
p2 = AoC2020_15(N,30000000);
println((p1, p2));
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