Data-Structures-and-Algorithms

Important Data Structures and Algorithms.

Arrays

• Binary Search (TopCoder)
• Sieve
• Catalan Numbers
• Sliding Window Technique
• Recursion and Backtracking
• N_Queens (BacktoBackSWE)
• Tortoise and Hare Pointer

Bit Manipulation

• Count Set Bits

BST

• Search, Insert, Delete, Find
• Leetcode List

Dynamic Programming

• Geeks for Geeks Top 20
• Aditya Verma Playlist
• AtCoder DP contest
• Top Code DP tutorial (Did novice and intermediate)
• Watch Tushar Roy Videos

Graphs

• 0-1 BFS
• BFS
• BFS - 2d matrix
• BFS - Shortest Path in Unweighted Graph
• BFS - Bi-partite Graph
• BFS - Bi-Directional BFS
• DFS
• DFS - Connected Components
• DFS - All Ancestors in DAG
• DFS - Calculate entry and exit time
• DFS - Topological Sort
• DFS - 2d matrix
• DFS - Graph Colouring to Find Cycle
• DFS - LCA
• Dijisktra **
• Disjoint Set Union **
• Kruskal using DSU
• Kosaraju SCC (https://www.youtube.com/watch?v=RpgcYiky7uw)
• Kahn's Algo for Top Sort
• Articulation Points (https://cp-algorithms.com/graph/cutpoints.html)

Hashing

• Various Types of Hashing
• Rolling Hash

Heap

Linked List

• Insert
• Delete Nth Node
• Reverse
• Merge Two Sorted Linked List
• Fast Pointer, Slow Pointer technique
• Doubly Linked List

Searching and Sorting

• Bubble Sort
• Insertion Sort
• Quick Sort
• Merge Sort
• Inversion Count
• Count Numbers Larger and Smaller than Self
• Radix Sort
• Count Sort
• Heap Sort
• Binary Search

Stack and Queues

• LRU Cache
• LFU Cache

Trees/Tries

• Flatten Tree
• Height of Tree
• Iterative Traversals
• Lowest Common Ancestor
• Level Order Traversal
• Diameter of a Binary Tree
• Recursive Traversals
• Diagonal Traversal
• Vertical Traversal
• Serialize and Deserialize Trees
• Trie
• Rope Structure

Strings

• Manacher's Algorithm
• Rabin Karp
• Palindrome Type Questions

Design Questions

• Max Stack
• Design twitter

Operating Systems

• SJF
• FCFS
• Round Robin
• Print numbers in sequence using different threads.
• Bounded Buffer Problem
• Dining Philosophers Problem
• The Readers Writers Problem
• LRU Cache
• Banker's Algorithm

Optional/Theory only

• Binary Indexed Tree
• Segment Tree
• Segment Tree (RMQ)
• AVL Tree
• KMP
• Cartesian Tree
• Floyd Warshall
• Convex Hull
• Line Sweep
• Manacher's Algorithm
• All applications of DSU