Hash Tables And Uses | Dataford Interview Questions

Explain what a hash table is and what it is used for.

Implement the concept with a function using separate chaining. run_hash_table(operations) receives a list of operations and returns one result per operation: set returns True, get returns its value or None, contains returns a boolean, and delete returns whether a key existed.

Constraints

0 <= operations.length <= 10^4
Each operation is set, get, contains, or delete
Keys are non-empty strings of at most 100 characters
Set values are integers
Keys may collide under the hash function
Operations are valid according to their operation name and required arguments

Function Signature

def run_hash_table(operations):

Your question is Hash Tables And Uses. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Explain what a hash table is and what it is used for.

Constraints

0 <= operations.length <= 10^4
Each operation is set, get, contains, or delete
Keys are non-empty strings of at most 100 characters
Set values are integers
Keys may collide under the hash function
Operations are valid according to their operation name and required arguments

Function Signature

def run_hash_table(operations):

Your question is Hash Tables And Uses. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.