Dictionary in Python is a data structure. Dictionary is similar to HashTable with some extra features. HashTable is one of the most important data structures in...

Continue reading...# HashTable

## First Unique Character in a String | LeetCode 387 | Python | Solution

This problem is pretty straightforward. Click here to see the problem. Problem Overview The problem description is one line and pretty simple. It says that we...

Continue reading...## Sum of Unique Elements | LeetCode 1748 | Python | Solution

Click here to see the problem details. Problem Overview This one is a very much simple problem. We have to find out the sum of all...

Continue reading...