private static void Task51()
{
var text = "1b37373331363f78151b7f2b783431333d78397828372d363c78373e783a393b3736";
var a = text.Length; //68
for (int i = 2; i < a / 2; i++)
{
if (a % i != 0)
{
continue;
}
var length = text.Length / i;
var strs = new List <string>();
//делим блоки попарно
for (var t = 0; t < i; t++)
{
var tmp = text.Substring(t * length, length);
strs.Add(tmp);
}
if (strs.Count % 2 != 0)
{
continue;
}
//находим расстояние
var averageHamingDistance = 0;
for (var t = 0; t < strs.Count; t += 2)
{
var xor = Xor.XoringTwoBinars(strs[t], strs[t + 1]);
var HammingDistance = xor.Count(x => x == '1');
averageHamingDistance += HammingDistance;
}
averageHamingDistance /= strs.Count / 2;
//Взламываем
var blocks = new StringBuilder();
for (var m = 0; m *averageHamingDistance < text.Length; m++)
{
blocks.Append(new String(text.Skip(m * averageHamingDistance).Take(averageHamingDistance).ToArray()));
}
var kek = blocks.Length;
Console.WriteLine("\n");
}
var d = a / 4; //16
}
