bool AllKeysEqual(PermutationKey key)
{
for (var i = 0; i < 10; i++) {
if (key[i] != this[i]) return false;
}
return true;
}
static bool AllKeysZero(PermutationKey key)
{
for (var i = 0; i < 10; i++) {
if (key[i] != 0) return false;
}
return true;
}
public static PermutationKey CreateKey(long i)
{
var key = new PermutationKey();
var iStr = i.ToString();
foreach (var index in iStr.Select(ch => int.Parse(ch.ToString()))) {
key[index] = key[index] + 1;
}
return key;
}