public int SumOfPrefix(string prefix)
{
Dictionary <char, MapSumNode> currChildren = Children;
int result = 0;
for (int i = 0; i < prefix.Length; i++)
{
if (!currChildren.ContainsKey(prefix[i]))
{
return(0);
}
MapSumNode currNode = currChildren[prefix[i]];
result = currNode.currSum;
currChildren = currNode.Children;
}
return(result);
}
public void Insert(string s, int value)
{
Dictionary <char, MapSumNode> currChildren = Children;
for (int i = 0; i < s.Length; i++)
{
MapSumNode temp;
if (currChildren.ContainsKey(s[i]))
{
temp = currChildren[s[i]];
}
else
{
temp = new MapSumNode(s[i]);
currChildren.Add(s[i], temp);
}
temp.currSum += value;
currChildren = temp.Children;
}
}
/** Initialize your data structure here. */
public MapSum()
{
root = new MapSumNode();
latestValue = new Dictionary <string, int>();
}
