tour guide

public interface SymbolTable<Key extends Comparable<Key>, Value> {     void put(Key key, Value val);     Value get(Key key);     void delete(Key key);     boolean contains(Key key);     boolean isEmpty(Key key);     int size();     Key min();     Key max();     Key floor(Key key);    //largest key less than or equal to key     Key ceiling(Key key);    //smallest key greater than or equal to key     int rank(Key key);    //number of keys less than key     Key select(int k);    //key of rank k     void deleteMin();    //delete smallest key     void deleteMax();    //delete largest key     int size(Key lo, Key hi);    //number of keys in [lo, hi]     Iterable<Key> keys(Key lo, Key hi);    //keys in [lo, hi], in sorted order     Iterable<Key> keys();    //all keys in the table, in sorted order }

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