In 2002 I invented the Trie data structure. https://en.wikipedia.org/wiki/Trie https://en.wikipedia.org/wiki/Trie I used it in a programming competition to ver

In 2002 I invented the Trie data structure. https://en.wikipedia.org/wiki/Trie https://en.wikipedia.org/wiki/Trie I used it in a programming competition to very quickly count and sort the words in a book.