Given two strings like x=?hello? and y=?open?, remove any
character from string x which is also used in string y,
thus making the result x=?hll?.
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Answer Posted / skybeaver
static public string StupidQuestion(string x, string y)
{
StringBuilder sb = new StringBuilder();
Hashtable ht = new Hashtable();
// just one pass through y
foreach( char c in y.ToCharArray() )
if( !ht.Contains(c) )
ht.Add(c, c)
// just one pass thru x
foreach( char c in x.ToCharArray() )
if( !ht.Contains(c) )
sb.Append(c);
return sb.ToString();
}
| Is This Answer Correct ? | 2 Yes | 2 No |
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