Understand how to find the median from the data stream using the Heap approach along with implementation in C++, Java, and Python.

Learn how to check if a given graph is a tree or not using the BFS approach, with implementation in C++, Java and Python.

Understand the Longest Repeating Character Replacement problem from leetcode and solve it using the sliding window and hashing approach.

Understand what is LFU cache leetcode problem with an example and how to implement it using the hashing approach.

Finding all anagrams in a string is one of the famous problems in Data structure that is often asked in technical interviews. In this article, we will understand this famous...

Understand what is a string compression leetcode problem and ho to solve it with implementation in C++, Java, and Python.

Understand the leetcode problem called Partition Equal Subset Sum, and how to solve it using recursion and dynamic programming approach.

Find the solution to the leetcode problem to find the longest substring without repeating characters with implementation in C++, Java and Python.

In data structures and algorithms, strings contain a lot of problems and when it comes to string manipulation and pattern matching there is a very popular programming problem. In this...

We will solve the leetcode problem to find the intersection of the two linked lists, with implementation in C++, Java and Python.