Step by Step solution about How to resolve the algorithm Text processing/Max licenses in use step by step in the Julia programming language

The provided code is written in Julia programming language and its purpose is to find the maximum simultaneous use of licenses and the time at which it occurred.The function maximumsimultlicenses(io::IO) takes an input/output stream io as its argument and returns the maximum simultaneous use of licenses and the times at which it occurred. The function starts by initializing the variables out, maxout, and maxtimes to 0, -1, and an empty array respectively. It then iterates through the lines of the input stream io using the readlines function. For each line in the input stream, it checks if the string OUT occurs in the line. If it does, it increments the out variable by 1; otherwise, it decrements the out variable by 1. After processing each line, it checks if the value of out is greater than the value of maxout. If it is, it sets maxout to the value of out and empties the maxtimes array. It then adds the time from the current line to the maxtimes array if the value of out is equal to the value of maxout. Finally, the function returns the values of maxout and maxtimes. Outside the function, the code opens the file data/mlijobs.txt and assigns the result of calling the maximumsimultlicenses function to the variables maxout and maxtimes. It then prints the maximum simultaneous license use and the times at which it occurred.

function maximumsimultlicenses(io::IO)
    out, maxout, maxtimes = 0, -1, String[]
    for job in readlines(io)
        out += ifelse(occursin("OUT", job), 1, -1)
        if out > maxout
            maxout = out
            empty!(maxtimes)
        end
        if out == maxout
            push!(maxtimes, split(job)[4])
        end
    end
    return maxout, maxtimes
end

let (maxout, maxtimes) = open(maximumsimultlicenses, "data/mlijobs.txt")
    println("Maximum simultaneous license use is $maxout at the following times: \n - ", join(maxtimes, "\n - "))
end