Solution: Compilation Order
Explore how to determine the correct compilation order of classes with dependencies using topological sort. Understand graph construction, in-degree tracking, source identification, and cycle detection to apply a systematic BFS approach that ensures valid orderings while handling dependency complexities.
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.