Covers around 20+ most popular coding interview problems ranging from a variety of topics   ( will have 200+ problems as 4 problems are being added every week)

  • Two Pointers

    • Idea of Two pointers and types of two pointers solutions

    • Two Sum

    • Remove Duplicates from Sorted Array

    • 3 Sum

    • Pair with Target Sum  (coming soon)

    • Squaring a Sorted Array  (coming soon)

    • Triplet Sum to Zero   (coming soon)

    • Triplet Sum Close to Target   (coming soon)

    • Triplets with Smaller Sum   (coming soon)

    • Subarrays with Product Less than a Target  (coming soon)

    • Dutch National Flag Problem  (coming soon)

  • Fast & Slow Pointers

    • Linked List Cycle using Floyd’s Cycle Detection Algorithm

    • Happy Numbers

    • Ugly number  (coming soon)

    • Middle of the LinkedList (coming soon)

    • LinkedList Cycle  (coming soon)

    • Start of LinkedList Cycle (coming soon)

  • Bitwise Manipulation

  • Greedy Technique

    • What are Greedy Algorithms ?

    • Bulbs

    • Highest Product

    • Disjoint Sets

    • Largest Permutation ( coming soon)

    • Meeting rooms ( coming soon)

    • Distribute Candy ( coming soon)

    • Seats ( coming soon)

    • Assign Mice to Holes ( coming soon)

    • Majority Element ( coming soon)

    • Gas Station ( coming soon)

  • Island Patterns

    • Intro to Matrix

    • Number of Islands Explanation

    • Number of Islands Code

    • Number of distinct Islands Explanation

    • Number of distinct island coding

    • Count sub islands   

    • Max Area of an island   (coming soon)

    • Island Perimeter  (coming soon)

    • Flood fill  (coming soon)

    • Wall and Fates   (coming soon)

    • Minesweeper   (coming soon)

    • Surrounded Regions   (coming soon)

    • Find all groups of a farm land   (coming soon)

  • Topological Sort

    • Introduction to Graph Problems 

    • Topological Sort

    • Kahn’s Algorithm

    • Implementing Topological Sort

    • Course Schedule

    • Alien Dictionary

    • Minimum Height Trees  (coming soon)

    • All Ancestors of a Node in a Directed Acyclic Graph  (coming soon)

    • Build a Matrix With Conditions  (coming soon)

    • Find All Possible Recipes from Given Supplies  (coming soon)

  • Depth First Search

Upcoming Additions  (3-4 problems are added every week)

  • Sliding Window

    • Easy

    • Medium

    • Hard

      • Longest Substring with Distinct Characters

      • Longest Substring with Same Letters after Replacement

      • Longest Subarray with Ones after Replacement

  • Arrays

  • Merge Intervals

    • Medium

      • Intervals Intersection

      • Conflicting Appointments

  • Linked List

  • Two Heaps

    • Medium

    • Hard

      • Maximum Capital

      • Sliding Window Median 

  • Top k elements

    • Easy

    • Medium

      • Top ‘K’ Frequent Numbers

      • Frequency Sort

      • Kth Largest Number in a Stream

      • ‘K’ Closest Numbers

      • Maximum Distinct Elements

      • Sum of Elements

    • Hard

  • K-way merge

  • Binary Search

  • Backtracking

  • 1D Dynamic programing

  • 2D Dynamic programing

  • Cyclic Sort

  • Topological Sort

  • Stacks

  • Queues

  • Depth First Search

  • Breadth First Search

  • Trie

  • Hash Maps

  • Math Tricks

  • Miscellaneous


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