Introduction to DSA

Data Structures and Algorithms (DSA) are the backbone of computer science, helping us solve problems efficiently.

What are Data Structures?

Data structures organize and store data. Common types include:

1. Array: Stores elements in a fixed-size, sequential list.
2. Linked List: Elements are linked with pointers.
3. Stack: Follows LIFO (Last In, First Out).
4. Queue: Follows FIFO (First In, First Out).
5. Tree: Hierarchical structure with nodes.
6. Graph: Represents networks with nodes and edges.

What are Algorithms?

Algorithms are step-by-step instructions to solve problems. Popular ones include:

1. Sorting: Bubble sort, Quick sort.
2. Searching: Binary search.
3. Pathfinding: Dijkstra’s algorithm.

Why DSA Matters

DSA optimizes code performance, reduces complexity, and improves problem-solving skills, essential for coding interviews and real-world applications.