Solution: Compilation Order
Explore how to solve class compilation order problems by applying topological sort. Learn to build graphs from dependency pairs, identify sources, and generate valid compilation sequences while handling cycles. This lesson teaches the implementation of BFS-based topological sorting to optimize time and space complexity in dependency resolution.
Statement
There are a total of classes labeled with the English alphabet (, , , and so on). Some classes are dependent on other classes for compilation. For example, if class extends class , then has a dependency on . Therefore, must be compiled before .
Given a list of the dependency pairs, find the order in which the classes should be compiled.
Constraints:
- Class name should be a character.