Dynamic Array
Build a resizable array that automatically grows when you add elements. This is the foundation of std::vector and demonstrates amortized O(1) insertion through the geometric growth strategy.
Data Structures & Algorithms Project
The difficulty level shown is relative to other DSA projects. This project assumes you're comfortable with C++ fundamentals including classes, pointers, and memory management. If you're new to C++, we recommend completing our core C++ lessons first.
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What You'll Build
A DynamicArray class template that manages heap memory, automatically resizes when full, and provides safe element access with bounds checking.
Learning Objectives
- Understand the difference between size (elements stored) and capacity (space allocated)
- Implement automatic resizing with the 2x growth strategy for amortized O(1) insertion
- Manage dynamic memory with new[] and delete[] to prevent memory leaks
- Use move semantics during reallocation for efficient element transfer
Project Steps
Introduction to Dynamic Arrays
Learn the difference between size and capacity, and create the foundation of your DynamicArray class with proper memory management.
Adding and Removing Elements
Implement push_back() with automatic resizing, pop_back(), and element access with operator[] and at().
Utility Methods
Complete your DynamicArray with utility methods: clear(), empty(), reserve(), and shrink_to_fit().