In [15]:

    

function valid_pass(passphrase)
    words = split(passphrase)
    length(words) == length(Set(words))
end

open("inputs/day4.txt") do fd    
    valid = 0
    for line in eachline(fd)
        if valid_pass(line)
            valid += 1
        end
    end    
    println(valid)    
end


    

    




325

In [26]:

    

using DataStructures

function valid_pass(passphrase)
    words = map(x->counter(collect(x)), split(passphrase))
    length(words) == length(Set(words))
end

open("inputs/day4.txt") do fd    
    valid = 0
    for line in eachline(fd)
        if valid_pass(line)
            valid += 1
        end
    end    
    println(valid)    
end


    

    




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