Hash map or hash table is a very popular data structure. It allows to store key, value pairs and using key you can locate a value in O(1) or constant time. We will implement simple hash table in python in this tutorial and in part 2 we will see how to handle collisions.
00:34 Array vs hashmap Scenario
03:52 Memory presentation (array vs hashmap)
04:15 Hash function
07:09 Big O Analysis
07:17 Hashmap in Python/JAVA/C++
07:47 Implement Hash Table in python