bag 2 inverted index 2 linked list 2 lru 2 lru cache 2 multimap 2 multiset 2 queue 2 sparse set 2 stack 2 structures 2 suffix tree 2 symspell 2 trie 2 union find 2 vantage point tree 2 vector 2 vp tree 2 data-structure 2 bimap 2 bit array 2 bit set 2 bit vector 2 bitset 2 bk tree 2 burkhard-keller tree 2 cache 2 circular buffer 2 counter 2 data structures 2 default map 2 deque 2 disjoint set 2 fuzzy map 2 hashed array tree 2 heap 2 interval tree 2 sparse map 1 passjoin 1 kd tree 1