https://leetcode.com/problems/replace-words/description/

Replace words with suffixes from dictionary #medium #trie

https://leetcode.com/problems/find-the-length-of-the-longest-common-prefix/description/


Common digit prefix between all pairs of two num arrays #medium #trie

https://leetcode.com/problems/sum-of-prefix-scores-of-strings/description/

Counts of words with same prefixes #hard #trie

https://leetcode.com/problems/remove-sub-folders-from-the-filesystem/description/


Remove empty subfolders #medium #trie #sort