public void insert(string num)
{
TrieNode here = root;
foreach (char c in num){
if (here.getChild((int)c) == null){
TrieNode newChild = new TrieNode(c);
here.setChild((int)c, c);
}
here = here.getChild((int)c);
}
here.getChild((int)num[num.Length-1]).setEnd(true);//set isWordEnd = true
}
public void setChild(int i, char l)
{
theChildren[i] = new TrieNode(l);
}
public Trie()
{
root = new TrieNode(' ');
}