A Babel of Languages on CodinGame

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Groovy

Checking the sample code

Note: my solution is almost Java. A more idiomatic Groovy-like solution is needed here to show...

inp = new Scanner(System.in)
m = inp.nextLine()
c = ["00", "0"]
b = ""
for (char w : m)
    b = b.concat(Integer.toBinaryString((int)w).padLeft(7,'0'))
a = c[(int)b.charAt(0) - (int)'0'] + " 0"
for (i = 1; i < b.length(); i++)
    if (b.charAt(i) == b.charAt(i - 1))
        a = a.concat("0")
    else
        a = a.concat(" " + c[(int)b.charAt(i) - (int)'0'] + " 0")
println(a.toString())