| private static subtract_strings ( string minuend, string subtrahend ) : string | ||
| minuend | string | |
| subtrahend | string | |
| return | string | |
private static string subtract_strings(string minuend, string subtrahend)
{
Bag m = new Bag(minuend);
Bag s = new Bag(subtrahend);
Bag diff = m.subtract(s);
if (diff == null) return null;
return diff.AsString();
}
