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Solution: Compilation Order

Explore how to apply topological sort to find a valid compilation order of classes based on their dependencies. This lesson guides you through building and traversing a dependency graph, handling edge cases like cycles, and analyzing solution time and space complexities for coding interview readiness.

Statement

There are a total of nn classes labeled with the English alphabet (AA, BB, CC, and so on). Some classes are dependent on other classes for compilation. For example, if class BB extends class AA, then BB has a dependency on AA. Therefore, AA must be compiled before BB.

Given a list of the dependency pairs, find the order in which the classes should be compiled.

Constraints:

  • Class name should be a character.
  • 00 \leq
...