trie

I have a large list of domain names (around six thousand), and I would like to see which words trend the highest for a rough overview of our portfolio. The problem I have is the list is formatted as domain names, for example: examplecartrading.com examplepensions.co.uk exampledeals.org examplesummeroffers.com +5996 Just running a word count brings up garbage. So I guess the simplest way to go about this would be to insert spaces between whole words then run a word count. For my sanity I would prefer to script this. I know (very) little python 2.7 but I am open to any recommendations in

I am trying to create a Trie Implementation in C++. I cannot figure out how to print all words stored in the Trie . This is how I've implemented the TrieNode . struct TrieNode{ bool isWord; int data; //Number of times Word Occured TrieNode *Child[ALPHABET_SIZE]; //defined as 26 }; I know I could store a pointer to the parent node, Depth-First Search for all nodes where isWord==True and recursively print each word from those nodes. But I'm wondering is there a way to print out each word in the Trie with my implementation of a TrieNode . Thanks for any help. Here is a reasonably efficient

I get the concept behind a trie . But I get a little confused when it comes to implementation. The most obvious way I could think to structure a Trie type would be to have a Trie maintain an internal Dictionary<char, Trie> . I have in fact written one this way, and it works , but... this seems like overkill. My impression is that a trie should be lightweight, and having a separate Dictionary<char, Trie> for every node does not seem very lightweight to me. Is there a more appropriate way to implement this structure that I'm missing? UPDATE : OK! Based on the very helpful input from Jon and

To make things easier, the table contains all the words in the English dictionary. What I would like to do is be able to store the data as a trie. This way I can traverse the different branches of the trie and return the most relevant result. First, how do I store the data in the table as a trie? Second, how do I traverse the tree? If it helps at all, the suggestion in this previous question is where this question was sparked from. Please make sure it's SQL we're talking about. I understood the Mike Dunlavey's C implementation because of pointers but can't see how this part (The trie itself)

I have contacts stored in my mobile. Lets say my contacts are Ram Hello Hi Feat Eat At When I type letter 'A' I should get all the matching contacts say "Ram, Feat, Eat, At" . Now I type one more letter T . Now my total string is "AT" now my program should reuse the results of previous search for "A" . Now it should return me "Feat, Eat, At" Design and develop a program for this. This is interview question at Samsung mobile development I tried solving with Trie data structures . Could not get good solution for reusing already searched string results. I also tried solution with dictionary data