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 computer science. You can use a dictionary as a HashTable. HashTable is excellent in terms of time complexity and easy data access. We can access, add, update, and delete […]
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 have to find the first unique character from a string and return the index of that character. In the given String, all characters will be English lowercase letters. Suppose
First Unique Character in a String | LeetCode 387 | Python | Solution Read More »
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 the unique values from an integer array. Nothing else, and we don’t have to check anything extra. Let’s see an example. In the above example, it’s clear that 5
Sum of Unique Elements | LeetCode 1748 | Python | Solution Read More »