We create a Hash-table of integers where the hash function returns the first digit of the integer(For example, for 33 it returns 3). If we use a binary search tree as the value storage of our hash-table, what is the time-complexity to look up an integer in it?* O(Log(N)) O(N*Log(N)) O(N) O(N^2)

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Hash Table

A hash table also called a hash map, is a data structure that maps key-value pairs. The hash table can be used in complex systems to provide fast access and compact storage. A hash table is a structure that stores data in an abstract data type kind of associative array. It keeps data in an array format, with a distinct index value for every data value. If the index of the required data is known, then the data can be accessed very easily.