Introduction to DSA

A DSA cheat sheet covers essential concepts for efficient coding:

  • Arrays: Fixed-size, indexed collection; fast access.

  • Linked Lists: Elements linked via pointers; dynamic size.

  • Stacks: LIFO structure; use push and pop operations.

  • Queues: FIFO structure; use enqueue and dequeue operations.

  • Trees: Hierarchical data; binary trees, AVL, and B-trees.

  • Graphs: Nodes connected by edges; use adjacency lists/matrices.

  • Sorting Algorithms: Bubble, Merge, Quick, Insertion Sort.

  • Searching Algorithms: Linear and Binary Search.

  • Hashing: Key-value mapping; use hash functions.

  • Complexity: Big O notation for time and space efficiency.

This foundational knowledge aids in problem-solving and coding efficiency.